DETECTION MONITORING TECHNOLOGIES AIMSFS-05X AIMS FAST SCAN RADAR SYSTEM (AIMSFS-05X) User Manual AIMS FS Radar I O Manual v1 0

DETECTION MONITORING TECHNOLOGIES, LLC (dba DMT, LLC) AIMS FAST SCAN RADAR SYSTEM (AIMSFS-05X) AIMS FS Radar I O Manual v1 0

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AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

DMT, LLC • DMT-M200-311 • 08/2009

4.2.8.2 Tilt Compensation

The checkbox Correct for Radar Tilt enables the software to recalculate the horizon by creating

a new array of elevation settings based upon the tilt information provided by the compass (if

installed).

4.2.8.3 Elevation Scan

Elevation scan is used to search an area in the elevation domain where the area being search is

broader than the vertical beamwidth of the antenna. On the completion of each azimuth scan

range, the elevation is adjusted by the Delta Elevation Angle. Upon the completion of Number of

Rows, the direction of elevation scan is reversed (up-down-up-down…)

The elevation scan is defined by:

• Base Elevation Angle

• Number of Rows

• Delta Elevation Angle

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

DMT, LLC • DMT-M200-311 • 08/2009

4.2.9 Zones Tab

Zones are setup through the client interface and this panel only allows the user at the AIMS radar

server to view the zone definitions. Setup and configuration of zones are discussed in the AIMS

Client operating manual.

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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4.2.10 Tracker Tab

The Tracker Tab (shown below) is used to set the settings of the tracker software.

Please note that only the Associator is currently enabled and all the features that uniquely affect

the performance of the AB Tracker have been temporarily grayed out (inoperable).

4.2.10.1 Merge Settings

The merge settings are used to help reduce redundant contact reports from the same detected

target (item of interest). When applied, the merge algorithm collapses a stream of contiguous

contacts to a single contact report located where highest detection value was reported. The

merge settings include;

• Apply Merge Algorithm. Enable/disable the merge algorithm.

• Range difference. Defines the size of the area (in range bins) to include in the merge set.

• Frequency difference. Defines the speed variance (in freq guard bins or indices) of

detections to include in merge set.

4.2.10.2 Select Tracking Source

The tracking source can be either the Tracker (AB Tracker) or the Associator;

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

DMT, LLC • DMT-M200-311 • 08/2009

• The Associator is an elemental tracking algorithm that builds basic tracks on adjacent

contact detections (within defined range).

• The Tracker is a more sophisticated alpha-beta tracking algorithm that includes track

projection and probability of error for track continuation (discussed in detail in separate

application note).

4.2.10.3 Set Tracker Settings

The Tracker settings include;

• Azimuth

• Stare Mode Update

• Range

• Purge Time

• Update Interval

• Max capture speed

• Drop track after # consecutive misses

• AB Tracker filter (theta)

4.2.10.4 Set Associator Settings

The Associator settings include;

• Range. Defines the maximum range between points to associate.

• Velocity. Defines the speed differential

• Time. Defines the maximum time between contiguous detections for association.

• Purge Time. Defines the time to “age out” an Associator track.

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

DMT, LLC • DMT-M200-311 • 08/2009

4.2.11 SaveData Tab

The SaveData Tab is fairly self-explanatory as this tab is used to establish the conditions and

filename attributes that define how Raw IQ data files are saved.

4.2.11.1.1 Autosave Parameters

The Autosave settings include;

• Automatic Save

• Save Every x dwells.

• Range Limits.

• Azimuth Limits

4.2.11.1.2 Manual Save Parameters

The manual save settings include;

• Save Detections

• Start Save

o Immediate

o Timed.

 Start Time

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

DMT, LLC • DMT-M200-311 • 08/2009

 Duration

4.2.11.1.3 RawIQ File Saves

The file saving option allows raw IQ data to be stored on the local hard drive in the directory,

c:\Data. The file names used will be the system time preceded by the string value listed in the

text box, “File Name Base”. Enter the desired file name and check the Save RawIQ File box.

Uncheck the box to stop saving data files.

4.2.11.1.4 Other Parameters

The following values are annotations that are stored with the saved data file(s);

• Ant BW

o Az – Azimuth. The horizontal (or azimuth) beamwidth of the antenna.

o El – Elevation. The vertical (or elevation) beamwidth of the antenna.

• Radar Dir. The absolute bearing of the radar home position. If a digital compass is

installed, this information is updated on initialization or when Update HPR (Compass

Tab) is selected.

• Radar Lat. The geo-positional latitude coordinates of the radar installation. If a GPS is

installed, this information is periodically updated.

• Radar Long. The geo-positional longitude coordinates of the radar installation. If a GPS

is installed, this information is periodically updated.

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

DMT, LLC • DMT-M200-311 • 08/2009

4.2.12 Compass Tab

The Compass Tab settings include;

• Comm. Port Assignment. The compass communicates over a serial I/O link

o CommPort. Sets the serial port connected to the compass.

o TimeOut. Communications timeout value.

o BaudRate. Data communications rate.

• MagVar. The magnetic variance, if available, should be entered for the specific region of

activity.

• Log Received Compass Data. Selecting this box enables the saving of received compass

data into the log file.

• Update HPR. To receive updated heading, pitch, and roll information from compass,

click on this tab.

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

DMT, LLC • DMT-M200-311 • 08/2009

4.2.13 Camera Setup Tab

4.2.13.1.1 Camera Parameters

For each camera, the settings include;

• Name. Unique name to identify camera setup.

• Type. Camera type (Vicon, Pelco, Pelco-D… etc.). The type identifies the

communications protocol, configurable attributes and default communications

parameters. At current, the AIMS software supports the following types;

o None

o DI5000

o TASS

o QuicksetN2

o Vicon

o PelcoD. If Pelco is selected, the Turbo button is enabled to allow the user to

activate a fast slew.

o LRAD

o SentryII

o Vumii

• Connection

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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o SerialPort

 COMM Port

 BaudRate

 DataBit

 StopBit

 Parity

 Cam Address.

o TCPIP

 IPAddress

 Port

• Offsets.

o Look Offset – Az. This offset value defines the azimuth angle difference between

the home pins of the radar and the camera (see drawing below).

o Look Offset – El. This offset value defines the difference in degrees between the

camera look angle (at 0º elevation) and the horizon (up is positive).

o Position Offset – Az. This offset value defines the location (in degrees

clockwise) the camera is positioned relative to the radar home pin.

o Position Offset – Rng. This offset value defines the absolute distance the camera

is positioned relative to the radar (in meters).

o Height. This offset value defines the height the camera is positioned above the

ground.

• IP Address (Video). The IP address of the video codec/server that digitizes the camera’s

output video stream (usually inside the UCM).

• Camera Array. This selection is used to support a very specific application involving

four cameras installed at 90º angles and communicating on a single multidrop serial

communications line. More detail may be found in the DMT document, “Camera

Alignment and Operation Procedures for AIMS EA-System” (dated 1/23/2008).

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

DMT, LLC • DMT-M200-311 • 08/2009

4.3 Required Configuration Settings

As mentioned previously, the configuration of most all of the AIMS Fast-Scan system features

should be performed through the client interface. There are, however, a few features that must

be setup directly through the server interface; these include;

• Setting the network parameters

• Configuring the Cameras

• Configuring the Compass

• Configuring the GPS

Normally, optional hardware (such as cameras, compass and GPS) is ordered at the time of

original sale. In which case, their physical installation and configuration would be completed

and operationally tested at the factory prior to shipment. Sometimes, however, these options

were either not available or foreseen as a requirement at the time of order.

4.3.1 Setting the Network Parameters

The network configuration parameters are used to set the IP address for the AIMS Fast-Scan

Server. Unless the network parameters are known before the time of shipment, these values will

have to be changed to reflect the individual need for each site.

In order to set the network parameters, the user must first login into the server computer using

Remote Desktop (on original configuration, Remote Desktop services are enabled). You must

know the current address setup on the server to enable a remote desktop connection – which

should be indicated on unit (tape with IP address written on it) or provided on the paperwork

received with unit.

Remote Desktop can usually be found under Start - All Programs – Accessories.

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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Enter in the IP address of the AIMS radar server and click on Connect.

You will then be asked for your Username and Password. On all DMT units, an account is

created for “DMT Tech” with a password “dmtllc” (case – sensitive).

The network parameters are set using the standard Windows XP

local area network configuration screen, accessed by selecting

Control Panel - Network Connections - Local Area Connection,

which should generate a screen similar to the one shown at right.

To modify the network parameters, select the button Properties and

scroll down to select Internet Protocol (TCP/IP) and select

Properties (again). This will generate a new window that will

allow you to enter the new IP address, subnet mask and gateway

(lower right).

Be very careful entering this information and record the new

values – once set, your Remote Desktop connection will be

terminated and you will need to login again with the new IP

address to verify it has been properly set.

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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4.3.2 Cameras

The standard AIMS camera controls

provide functionality for connecting to a camera’s pan/tilt

device (via either serial port or TCPIP connection), sending pointing commands to that device,

and displaying the video feed from the associated camera. The connection details required for

accomplishing these tasks are determined by the camera “type” selected and the setup parameters

entered in the Camera Setup control boxes, as described later. Note that the camera type

selection will automatically set the proper communications protocol for that camera.

There are two separate cameras defined and controlled by each AIMS Radar, referred to as

Camera 1 and Camera 2 throughout the Radar and Client programs. All camera commands

generated by either the Client program or the Radar program are directed to one or both of these

cameras depending on selections made by the user. Note that these camera designations

(Camera 1 and Camera 2) actually represent a camera type and a communications path for that

camera. For example, Camera 1 (or Camera 2) represents a single camera type (i.e., DI5000,

SentryII, PelcoD, etc.) connected to a camera controller through a TCPIP or serial port

connection. For a serial port connection, Camera 1 (or Camera 2) may actually represent

multiple cameras connected in a daisy-chain arrangement.

In this case, each individual camera

in Camera 1is addressed by a second parameter (Camera Address) which is selectable on the

Radar or Client control panels.

4.3.2.1 Camera Setup

The camera setup is performed by entering the appropriate information in the Camera 1 or

Camera 2 setup box located on the Camera Setup tab on the Radar program’s control panel.

Normally, this setup is performed only once, and is automatically restored on subsequent starts

of the AIMS Radar program as described later.

Note in the figure (below) the Camera Setup tab page on the Radar program control panel with

no selections made for either Camera 1 or Camera 2 (the default setup state).

Pelco D protocol Vers 2 Rev 1 for PelcoD, and ICD-TASS-001 for SentryII.

This is the control arrangement for the Pelco cameras in the EA-System configuration. Camera 1 is the pathway

used to communicate with any one of the four of the Pelco cameras.

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The camera setup starts by clicking on the “Change” button to activate the controls in the

Camera 1 setup box. A camera type (such as PelcoD) may then be selected from the “Type”

dropdown box. Next, a connection type is selected in the “Connection” dropdown box. The

connection type refers to the camera’s pan/tilt controller (Serial or TCPIP). For the Pelco

cameras, a serial port connection is selected (COMM 3).

Camera 2 may be setup the same way.

Note that the camera and type selections will automatically select and enter the serial port

settings for each camera (BaudRate, DataBit, StopBit, and Parity). Other entries must be

entered by the user to complete the setup process. These entries include the following:

• Name: (Optional) A convenient name used to identify the camera assigned as Camera 1

or Camera 2 (This name entry appears in the Client Video selection box, described later)

• COMM Port: The Pelco cameras are controlled through COMM 3; the FLIR Sentry

camera is controlled through COMM 4. (These values must be entered as shown).

• Look Offsets:

Enter the LookOffAz, LookOffEl values for each the cameras as described

in section “4.3.2.5 Camera Look Offsets”.

• Camera Height: Enter the height of the camera above ground level in the Ht textbox.

• Camera Address: Used for multi-drop serial applications. Enter the camera address (1

..4) for the camera that will react to commands sent to Camera 1. (Can be left as “1” at

initial setup. This camera address value is normally set with other controls in the Radar

and Client software).

• IP Address (Video): Enter the IP Address of the video converter for the desired camera.

• Camera Array: Usually not checked, used for special application; detailed in “

Camera

Alignment and Operation Procedures for AIMS EA-System (dated 01/23/2008)”

The Look Offsets (as well as the Position Offsets) affect the accuracy of the camera pointing commands generated

by the AIMS Client (move to mouse click) and the AIMS Radar (slew to detection) programs. The default values of

“0” indicate that the Radar and camera are co-located and have home positions aligned.

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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After completing these setup entries, the next step is to create a camera client object by clicking

on the “Create Client” button. This action creates the client object which opens the specified

serial port and provides two-way serial communications with the camera controller. The setup

box now appears as shown in the figure below.

AIMS Radar / Camera 2 setup box after creating camera client objects

If the camera object is created successfully, the caption on the create button changes to “Close

Client” and the light next to the button turns green.

After entering all setup parameters in the camera setup boxes, click on the “Set” buttons to

complete the Camera 1 and Camera 2 setup and update the internal settings in the new camera

objects. (The “Set” button causes two actions to occur: (1) the camera client object is updated

with the setup parameter entries, and (2) all connected AIMS Clients are updated to show the

new parameter values).

The main camera controls on the AIMS Radar, located on its Operation tab, will now change to

show the new setting for Camera 1 and Camera 2 as shown in Figure 2.4:

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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Once a camera has been defined, the camera type selection will appear in the “Type” textbox

(next to the Camera 1 or Camera 2 label) with a green background, and a “Show Commands”

button will appear on the Operation tab page. The Show Commands button activates a pop-up

window containing a set of controls for sending commands to that camera type.

At this point, the user should save the camera setup details by clicking on the Save Settings

button at the top of the Radar control panel. This action will update the AIMS Radar’s

configuration file, which will restore these settings with the next load or restart of the AIMS

Radar program.

The camera setup information is sent automatically to the AIMS Client when it connects to the

AIMS Radar. The AIMS Client display has similar camera setup controls which allow the user

to perform some but not all of the camera setup tasks described earlier.

4.3.2.2 Camera Pointing Commands

The AIMS Radar and Client programs are capable of generating movement commands for all

cameras integrated with an AIMS Radar. This feature allows the user to “point“ Camera 1

and/or Camera 2 using one of three basic control methods.

The basic control methods are listed as follows, and are described in the next subsections:

• Manual Pan/Tilt controls

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• Point to Mouse Click

• Point to radar detection

4.3.2.2.1 Manual Pan/Tilt Controls

Both the Client and Radar programs provide a set of manual pan/tilt controls to continuously

move a camera while a button is depressed (slew left/right, up/down) or to move the camera to

specified azimuth and elevation location.

The manual controls on the Radar program are located on pop-up command windows, which are

activated by clicking on the Show Commands button for Camera 1 or Camera 2 located on the

Radar’s Operation tab page. The figure below shows the command window for the Pelco

camera.

AIMS Radar / Pop-up window for Pelco cameras pan/tilt controls.

All camera pop-up command windows contain a Parameters box, which shows the current

settings for various parameters in the camera client object. Otherwise, the controls are generally

different for each camera type integrated into the AIMS software (see example screens below).

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AIMS Radar / Pop-up windows for pan/tilt controls on various camera Types

The manual pan/tilt controls consist of four button controls (Up- Down –Left- Right or U-D-L-R )

which operate the same as the Client controls. The pan and tilt speed can be adjusted using the

Pan Spd and Tilt Spd slide bar controls.

Both command windows provide a “GoTo” control which will command the camera to move to

an absolute azimuth and elevation position. The values for these commands are entered as

azimuth and elevation angles relative to the Radar home position. That is, the cameras move to

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the specified look direction as measured in the Radar’s local coordinate system (and not the

camera’s local coordinate system). The Look Offset values entered earlier with the camera setup

account for any differences in the Radar coordinate system and the individual camera coordinate

system.

Selecting the Go To Home button causes the camera to move to a look direction which is aligned

with the Radar home position.

4.3.2.2.2 Point to Mouse Click

This feature allows the user to quickly point any Camera attached to an AIMS Radar to a

geographic point on the Client’s PPI display. This action is performed by selecting the desired

camera for this command, and then clicking the mouse at the point on the PPI display. This

feature is discussed in more detail in the AIMS Client Manual.

4.3.2.2.3 Point to Radar Detection

Either or both Camera 1 and Camera 2 can be selected to point automatically at detections

reported by the controlling AIMS Radar. This selection can be made by checking the Track to

Alarms checkbox adjacent to the desired camera on the Client or on the Radar. When Track to

Alarms is selected for a camera, that camera will automatically point at each Radar detection as it

is declared.

The function is deactivated by un-checking the Track to Alarms checkbox.

4.3.2.3 AIMS Radar and Camera Alignment

The AIMS Radar software requires that several “alignment” parameters be determined for the

system configuration and entered into the Client and Radar control programs. This section

describes these parameters and illustrates the general procedure for determining their values.

These key alignment parameters are the Radar Direction (RadDir), the Look Offsets for each

camera (LookOffAz, LookOffEl), and the Position Offsets for each camera (PosOffAz,

PosOffRng). They are described briefly as follows:

• Radar Direction – The azimuth angle in degrees, measured positive clockwise, from True

North to the Radar’s look direction

at its home position. That is, the RadDir is the true

bearing of the Radar beam centerline at the Radar home position. This parameter is used

by the AIMS software to calculate the Latitude and Longitude values for detections and

The Radar look direction is the outward direction of the Radar beam centerline.

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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other display symbols on the Client PPI display. If the RadDir is not entered properly in

the AIMS Client and Radar programs, then Latitude/Longitude values calculated by the

Radar will be incorrect.

• Look Offsets – These angles measure the difference (azimuth and elevation) between the

Radar look direction at its home position and the camera look direction at its home

position. The LookOffAz is the azimuth angle in degrees, measured positive clockwise,

from the Radar to the camera. The LookOffEl is the elevation angle in degrees, measured

positive up, from horizontal to the camera look direction. These parameters are used by

the Radar software to calculate the proper pointing commands for the camera. Errors in

the LookOffAz and LookOffEl values will result in incorrect pointing commands sent to

the camera.

• Position Offsets – These offsets account for a camera being located at a different position

than the AIMS Radar. The PosOffAz is the azimuth angle (measured positive clockwise)

from the Radar look direction at its home position to the point where the camera is

located. The PosOffRng is the range in meters from the Radar to the camera position.

Errors in these values will result in incorrect pointing commands sent to the camera.

The AIMS control software will utilize the alignment parameters defined above to generate

correct geographic positions (Latitude and Longitude) and to generate the correct azimuth and

elevation angles for commanding cameras to point at radar detections and at geographic points

on the AIMS Client PPI display.

The next sections will describe how to measure the various alignment parameters using this

general diagram.

4.3.2.4 Radar Direction Measurement

The Radar Direction (RadDir) parameter measures the geographic

orientation of the Radar. The figure below shows the plan view with

the radome removed, the base plate exposed, and the AIMS Radar

visible and located at its home position.

The Radar Direction is the angle in degrees between True North and the

Radar home position. It is recommended that this direction be marked

on the base plate so that it can be seen once the radome is replaced.

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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4.3.2.5 Camera Look Offsets

The figure at right illustrates the geometry for measuring the

Look Offset azimuth (LookOffAz) for a camera mounted on

top of the AIMS radome, with the Radar and the camera home

positions indicated.

The Look Offset elevation (LookOffEl) should also be set to

“0.” Note that the Radar orientation is expected to be level.

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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4.3.3 Compass

DMT has selected the Honeywell HMR3000 as the preferred compass device. The Honeywell

compass uses a 9-pin serial connector for communications with the AIMS radar. Power is also

provided via this connector (see drawing). The serial communications lines should be attached

to the serial I/O port on the CPU stack via the Molex connector block (pins 7,8 and 9).

Name

In/Out

Description

TxD

Out

RS232 Transmit / RS485 TxRx+

RxD

RS232 Receive / RS485 TxRx

GND

Power and signal common

Regula

ted power input

15V

Unregulated power input

Caution: Do NOT exceed +5.5V at regulated power input (pin 8). Higher voltages

will damage components.

The HMR3000 should already be wired and attached to the stand-post behind the antenna, ready

for configuration.

After installation is completed, you will need restart the AIMS Radar server software and check

the box “Compass” on your Operation tab to begin using your Compass. The communication

parameters should be set on the Compass Tab to the following values;

• Port. COM5

• Baud Rate. 19200

• Data Bits. 8

• Parity. None

• Stop Bits. 1

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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4.3.4 GPS

DMT has selected the DeLorme Earthmate GPS LT-40 as the preferred GPS device. The GPS

uses a USB port on the computer stack for communications and power. The GPS draws

approximately 500ma of 5VDC power; a substantial portion of the available power from the

USB ports. It is assumed that the GPS unit is already mounted on a stand-post that is designed to

support the installation of the GPS and compass. Please insure that the GPS unit is secured with

either a tie-wrap or double-sided tape.

The GPS requires the support of a serial software emulation package; DeLorme Serial Emulator.

This software should already be installed on your system. If not, the installation software should

be available on your server hard disk drive under the subdirectory “C:\Setup\DeLorme”.

Simply run the installation file and your GPS unit will be available for operation.

Locate the DeLorme icon (red ball) on your lower toolbar and

right-click to run the DeLorme Monitor function to verify the

GPS is operational. If data does not appear to be passing

to/from the GPS device, check the serial emulation tab

to be sure that at one of the available three ports are

enabled (this is the port that the AIMS software should

be directed to) and its NMEA tab is checked.

After installation is completed, you will need restart the

AIMS Radar server software and check the box “GPS”

on your Operation tab to begin using your GPS. The

GPS communication parameters are;

• Port. Note the Virtual COM Port (above)

• Baud Rate. 4800

• Data Bits. 8

• Parity. None

• Stop Bits. 1

4.4 Motor Software (SMI)

The elevation and azimuth motors are ‘smart’ motors and must be loaded with software to

properly function. The SMI Motor Terminal software is used to load the subroutines into the

motors at the factory on original configuration. The SMI Motor Terminal software is also loaded

onto each server CPU stack to support future maintenance, if required. The use and features of

this software may be referenced in a separate document, titled “Transferring Motor Codes”

(Instr_XferMotorCodes.pdf).

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5 Client Software

As previously stated, although most all of the software parameters may be modified through the

server interface it is recommended that the normal use and modification of the system parameters

be performed from the client interface where more comprehensive error-checking and boundary

conditioning is performed to prevent the user from configuring an abnormal operating condition.

As configuration changes are made, the client interface sends sequences of instructions to the

server often momentarily stopping the current radar operation until the changes are completed.

5.1 Configurable Features

The table below provides a brief overview of the configurable parameters within the AIMS client

software.

Waveform

Generation

Signal

Processing

Motion

Management

Display /

Save Data

Other

PRF Rate A/D Sample Rate Mode

• Positional

• Velocity

Graphing

• FFT Data

• Line Graph

Network

• IP Addr

• Port

Pulse Width Range Bins

• No of bins

• Zero range bin

Scripts Segment Trunc.

No. of Pulses Filters

• Smoothing

• Matched

• Ramp

• Lobe Removal

o Main Lobe

o 2nd Lobe

3rd Lobe

Limits

• Azimuth

• Elevation

Saving IQ Data

• Autosave

• Save Detections

• Duration

Cameras

• Track to Alarm

• FOV

• Comm.

• Video Svr

• Offsets

Tracker

• AB Tracker

• Simple Tracker

•

Offsets Broadcast Interval BITE

• Check A/D Limits

Autoscan Save Settings

TX Frequency Tilt Compensation Restore

Zones Motion Compens. Start/Stop

Sensitivity

Speed Threshold Normalization

Basically, the configurable features entail;

• Defining the transmitted pulse (waveform generation)

• Selecting how to process the received signal (signal processing)

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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• Aiming the antenna (motion)

Additional configurable features include;

• Navigating cameras and viewing video streams

• Saving/replaying captured data

These configurable features are organized in an array of ‘tabs’ that provide user friendly check

boxes and option lists and are described in the following section, “User Interface Screens”.

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual

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5.2 User Interface Screen Overview

The basic client screen appears like (picture below):

5.2.1 Login

In order to effect any changes to the display or configuration, a user must login; requiring both a

Username and Password (Username is logged in the activity audit trail). There are three levels

of authority; Administrator (complete rights), Supervisor () and Guard ().

Operators, supervisors and administrators must log in to the client before using. Pressing the

(operator, supervisor or administrator) and their password and optionally their name. The

button to the right will illuminate green for operators and yellow for administrators when login is

successful. At the end of a shift, the user should press the illuminated button. This logs them

out.

5.2.2 Select Radar Connection

Clicking on the Radar Controls Window will cause a pop-up window to appear. The window

will permit the user to add or delete a radar. Radars are assigned an index as added.

DETECTED

TRACKS

INFORMATION

PLAN POSITION

INDICATOR (PPI)

DISPLAY

CAMERA VIDEO

DISPLAY

CONFIGURATION

TABS

SELECT RADAR

CONNECTION

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The client may connect to as many as 16 radar servers at one time. Adding a radar is as simple

as clicking on the Radar Controls area and select “Add a Radar.” This version can add up to 16

radar systems. Each new radar is given a button in the Radar Controls area, and the tab set

associated with that radar is given an index from 0 to 15. For instance, Error! Reference

source not found. shows 3 radar systems have been added and radar #1 parameter tab set is

open. Deleting a radar is also straightforward. Click on the Radar Controls area and select

“Delete a Radar. “ When a radar is deleted, the button is removed from the Radar Controls area.

All other radar indices remain the same, even if the radar being removed is not the last radar.

There is no reshuffling of the indices when a radar is removed. For example, if there are 3

radars (indexed 0, 1 and 2) and radar #1 is removed, the other 2 radars keep their index (0 and 2).

Cameras are added to the interface by assigning them to a given radar. The current version 3.22

permits 2 cameras to be controlled by a single radar server. Controlling more than one camera

requires that each of the cameras is addressable. Cameras that use serial communications (such

as RS-232/422/485) often set addresses using dip switches. Network cameras use IP addresses.

Cameras that are not addressable must have a serial port assigned to each camera, which limits

the number of cameras to 2. The radar server code has the appropriate port setup parameters if

this is required.

Only one video stream to be displayed at a time. The camera video being displayed is indicated

in the Video Server Control window and the camera’s position is illuminated as a triangle on the

PPI Display. (See Error! Reference source not found.).

5.2.3 Plan Position Indicator (PPI)

The Plan Position Indicator, or PPI,

provides the user a bird’s eye view of

where the detected activity is relative to

the radar locations. The PPI display plots

detection and track symbols over a digital

map. If no map exists, then a compass

rose (bearing markers and range rings)

are displayed. Radar locations are

indicated with red crosses; camera

locations as yellow triangles. Yellow

vectors from the camera or radar indicate

current look direction. Clicking on the

display will manually override slew-to-

cue (automated pointing of camera by

radar and point the camera.

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5.2.4 Camera Video Display

The video from any attached camera is shown in the video

display window. If there is no video or if there is a loss of

video, this window defaults to a white background with the

DMT logo.

Video Servers convert analog video streams to digital

streams and then pass them over a network. The video

server control allows the user to connect/disconnect and to

select the video feed shown in the Video Display Window.

The video server controls provides the TCP/IP address and

camera type. TCP/IP and camera types are set under the

Camera Setup Tab of the particular radar for which the

camera is linked.

If selected, “Move to mouse click” allows the user to

navigate the camera using the mouse. Simply by pointing to a location on the PPI display and

clicking the left button, the camera is instructed to change it elevation, azimuth and zoom to look

at the location selected.

5.2.5 Detected Tracks Information

Sustained detected activity that meets the guidelines for a

“track” are created and updated in this screen display area.

Tracks are identified by Track ID (Rad-TrkID), Distance

(Dist), Bearing (Brng), Radial Velocity (RVel), and

Magnitude (Mag). As new activity is detected the tracker

either updates an existing track or the foundation of a new

track is created. Tracks that do not have continued updates

eventually expire and are removed from this list.

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5.3 Configuration Tabs

The initial values and selected options on the Configuration Tabs indicate the state of the AIMS

Radar once a network connection is established. Changes to the AIMS Radar parameters are

made by selecting (clicking) on option buttons and check boxes. Administrator privilege is

required to access most of the Setup Tab controls. Controls not available will be grayed out.

Caution: Users should not change values if they are unsure of the consequences. When

experimenting with new settings do NOT save the radar parameters as default until

performance has been verified.

The tabs provide access to the various features that may be changed to configure the system.

The tabs include;

• Network

• Processing

• Motors

• Adv Process

• SaveData

• Cameras

• Radar

• Camera Setup

• LineGraph

• Messages

The following subsections briefly discuss each tab and its parameter settings.

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5.3.1 Network Tab

The Network Tab primary function is to provide the interface to connect and disconnect from the

currently selected radar server.

5.3.1.1 System Status

When selected, the System Status button forces the built-in-test function to verify the operational

status of the serial communications ports, azimuth/elevation motors, and camera ComPort. If

properly operating, the relevant box is filled green, . If not, the box is filled red, .

5.3.1.2 Radar Address

The IP Address and Port # of the currently selected radar must be properly entered here before

the client may connect to it.

5.3.1.3 User

A unique User name must be entered here prior to attempting to connect to the current radar

server. If another client is connected to the radar server under the same username, the server will

reject the connect request.

SYSTEM STATUS

RADAR

ADDRESS

NETWORK

TRANSACTIONS

WINDOW

USER CONNECT/DISCONNECT

RADAR

MARK

POSITION ‘HARD’ DISCONNECT

ERROR REPORTING WINDOW

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5.3.1.4 Connect/Disconnect Radar

When selected the client request to connect/disconnect from the radar server. When connected,

only the disconnect button is active and when disconnected only the connect button is active.

When attempting to connect/disconnect, both buttons will temporarily be disabled until the

server verifies the change in status back to the client.

5.3.1.5 “Hard” Disconnect

Rarely used, this button forces the immediate termination of the client connection to the radar

and does not wait for verification from the server. This should only be used if there is an

unnatural suspension of the connection status.

5.3.1.6 Network Transactions Window

This windows displays all the major network transaction activity between the client and the

server. The window may be cleared by selecting the Clear button on the upper right hand corner

of the window.

5.3.1.7 Error Reporting Window

This window displays both error reporting and special messaging from the server to the client.

The window may be cleared by double clicking the mouse in the window space.

5.3.1.8 Mark Position

When selected, the mark position checkbox allows a user to position the icon of the current radar

on the map background by placing the mouse on the location for the radar and clicking the select

button. This function only works when a map has been placed unto the background of the

display. (for details on how to make maps for AIMS, refer to document “Map Making for

AIMS).

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5.3.2 Processing

All of the items on the Processing Tab and Advanced Processing Tab are designed to reduce

signal from the environment (known as clutter), reject internal noise and false alarm generators,

and increase intruder signal strength.

5.3.2.1 Track Source

5.3.2.2 Merge Algorithm

5.3.2.3 Matched Filter

The Matched Filter is a digital signal processing technique that matches the receiver

characteristics to the transmitted characteristics. More directly, the pulse width and pulsed

shape are matched. Since the radar pulse for AIMS is very square (that’s a good thing), the

matched filter can be generated by simply matching receiver gate width to the transmitted pulse

width. This is accomplished by coherently summing the range bins until the sum equals the

pulse width. Since pulse width is in nanoseconds, it must be converted to meters (pw (meters) =

pw(nanoseconds) * 3E8). This implementation is sometimes referred to as a “boxcar” matched

filter. The result is improved range performance and clutter rejection. The size of the filter is a

function of the pulse width or length and can be set for Auto calculation (Auto MF) or set

manually (Set MF - MFP). Auto MF will allow the radar to calculate the appropriate number

CHANGE TRACKER SETTINGS

TRACK

SOURCE MATCHED

FILTER SMOOTHING

FILTERS A/D BOARD

OPTIONS

MERGE

ALGORITHM

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of range bins needed to match the pulse width automatically. Set MF allows the user to override

the automated calculation. DMT have found that performance for the radar is often better when

the MF constant is a little lower than the value calculated by the Auto MF procedure. The MF

constant value is set and reported in the text box in the lower right corner of the Matched Filter

settings box. The matched filter routine is implemented before the FFT algorithm.

When the matched filter is applied to the data, it generates as a sliding window filter. For

instance, if the matched filter is set to 4, then the first application is range bin 1 = range bins

1+2+3+4, the second application is range bin 2 = 2+3+4+5, the third application is 3+4+5+6, and

so on. Decimate Data should be implemented as a method for speeding up processing. When

enabled, it applies the matched filter as stepped filter – not sliding. For example, if the matched

filter is set to 4, then the matched filter will be applied for range bin 1 = range bins 1+2+3+4,

then range bin 2 = range bins 5+6+7+8, range bin 3 = ranges bins 9+10+11+12, and so on. In

this example, the overall number of bins to be processed by the FFT will be one-fourth as many.

This would result in significantly faster processing, which in turn permits the radar to spin faster.

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5.3.2.4 Smoothing Filters

5.3.2.5 A/D Board Options

5.3.2.6 Change Tracker Settings

The Processing tab, Figure 1, contains options for the Matched Filter, FFT (Fast Fourier

Transform) processing, applying a DC Offset, and a Speed Threshold. The Advance Processing

Tab, Figure 19, contains Smoothing Filters, Ramp Functions, ClutterX options.

Apply DC Offset is an algorithm ensures that the In-phase and Quadrature (I/Q) channels of the

radar are well balanced and centered and 0 volts. Unbalanced and non-centered channels will

result processing sidelobes, which can generate false alarms. The in-Range option is a

traditional implementation of the algorithm, whereas, the across-Pulses is a better performing

implementation of the algorithm. DMT recommends that Apply DC Offset is always enabled

(checked) and across-Pulses is selected.

The Use Speed Threshold is an option that can be used to focus on targets of interest. The

threshold limits reported detections to targets traveling slower than the threshold speed; for

example only targets traveling 10mph or slower.

Figure 1 - Processing Options

Decimate Data does affect (reduces) the resolution of the system by elimination of the sliding

window. DMT recommends that Decimate Data be disabled for most sites and should only be

enabled when high rotation speed becomes critical.

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Range Interlacing is an algorithm that mimics the methods used by search and rescue teams to

quickly scan large areas in less time. DMT has added this algorithm to speed up search by

reducing the number of range bins that must be processed. Figure 8 illustrates the principle.

The process should only be used with rotation speed of the radar becomes critical.

Figure 2. Range Interlacing.

The Fast Fourier Transform (FFT) is used to generate Doppler signatures. Doppler is the

measure of frequency shift in a signal that is reflected off a moving object. An object moving

towards the radar results in a positive shift. A positive shift is a compression of the wavelength,

which translates to a resultant frequency higher than the transmitted frequency. An object

moving away from the radar results in a negative shift (a stretching of the wavelength), which

translates to a frequency lower than the transmitted frequency. Doppler can be converted to

object relative speed. That is, the Doppler can tell the user the speed of an object relative to the

radar. And the direction of the object relative to the radar can be instantly obtained by the sign

of the Doppler (positive means its heading toward the radar, negative means its heading away

from the radar). The FFT enables the radar calculate all Doppler frequencies for a given look

direction and for a single range bin. DMT’s software calculates thousands of FFT’s in a second.

To facilitate real-time operation, DMT has employed the fastest FFT algorithm available.

Since every look at an object is over a finite time, processing artifacts arise. One such artifact is

known as processing sidelobes. Sidelobes are normally displaced from the real Doppler

frequency, so the detection of these lobes can result in false Doppler readings. These sidelobes

have typically 20 times less power than the main lobe (real Doppler). So for the most part, these

sidelobes are not detected. For large objects, however, the integration gains from the FFT can

result in detectable sidelobes. If large objects are expected, then weighting of the raw radar data

can result in suppressed sidelobes. Kaiser, Hanning, Hamming, and Bartlett are weighting

algorithms. DMT does not normally invoke these algorithms when the radar is searching long

ranges. The reason is because there is a penalty in the true Doppler signal level when used.

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The magnitude (strength) of radar signals is normally presented as either linear units (of voltage)

or in dB (decibels). Traditionally, dB is used in radar applications because it allows fine details

of small signals to be seen with clarity even when very large objects are present. However,

DMT uses Linear Mag (linear magnitude) for most site installations. Linear magnitude offers

finer control of threshold settings. The units for Sensitivity are set as by the selection of Linear

Mag. If checked, Sensitivity increments are in linear units. If not checked, then Sensitivity is

adjusted in dB units.

Param Info is a read-only section of the Processing Tab. The parameters listed in the box are

repeated elsewhere and are included as a reference.

Additional Processing and Advanced Processing options shown in Figure 3 provide options to

apply Smoothing Filters, Ramp Functions, and ClutterX. The smoothing filters and ramp

functions are used to digitally lower signal strength over a given range swath. They are

particularly useful for reducing the affects of processing artifacts generated from very large

objects located at close ranges. Large objects at close ranges can reflect so much energy that it

saturates the radar at that range. Saturation can cause false target detection. Ramp functions

lower the signal strength to levels below alarm thresholds. The Beginning Range indicates the

first range bin for which the function is applied and the Ending Range indicates the final range

bin. The Ramp Percent represents that maximum percentage applied to the measured

magnitude (signal strength). So a Ramp Percent value of 30 means that the signal strength will

be reduced to 30% of its current value. Linear Ramp in Range means the reduction is applied

over a linear slope from 0 to Ramp Percent, which the above example is 30%. This linear slope

is applied over the Beginning Ranges to Ending Ranges. Step Ramp in Range means the

reduction is an equal percentage over the entire range swath defined (Beginning Range to Ending

Range). Clutter X allows for the removal of nuisance alarms around zero Doppler (very slow or

non moving objects). Clutter X (sometime referred to as a clutter notch), sets all values in and

around 0 Hertz = to the text box in the lower right hand corner. Appropriate settings for this text

box are usually 0 or negative numbers. [Note: A negative number lowers the plotted color of

the notch to black and thereby, is easier to see when looking at Doppler Plots. ] The number in

the upper left corner text box represents the number of Doppler bins (frequency slices) around 0

Hertz that are set. “0” in this text box equals to 0 Hertz only. “1” in this text box represents one

Doppler bin on either side of 0 Hertz is set. Commonly set values are 0 to 2. Clutter X is very

useful for removing the response from swaying trees, moving water, or windblown heavy brush.

Setting Clutter X too high can reduce the ability of detecting walking humans.

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Figure 3 - Advanced Processing Options

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5.3.3 Motors

Antenna movement and position can be controlled using the commands on the Motors tab. This

is primarily intended for use during initial setup, sensor tuning, and troubleshooting. When in

position mode the radar can be moved to a specific location (azimuth and elevation) by clicking

on the map. To operate in this mode select the Move Radar to Point on Map check box and

simply click on the map. Caution: Verify the Azimuth motor is in the Position Mode before

selecting this option. Problems with the antenna motors are indicated by AIMS Server via a

message to the AIMS Client. The AIMS Client will display “Error” for the reported position (Rpt

Pos), Figure 10.

5.3.3.1 Azimuth Control

There are several commands available for working with the Azimuth motor. The primary

commands are Change Mode and Start/Stop Scan. Change Mode is used to transition the azimuth

motor between Position and Velocity modes. When in Position mode a sector scan can be

accomplished by setting lower and upper limits and clicking Start Scan. The button text will

change to Stop Scan and the azimuth motor will move between the lower (Lwr) limit and upper

(Upr) limit continuously until Stop Scan is clicked. Scan limits should be entered using negative

angles so that the minimum scan angle is always less than the maximum. For example, to scan

from 350 degrees to 20 degrees enter -10 to 20 for the minimum and maximum scan limits

respectively. The commands; Stop Motor, Get State, and Reset Motor were added for safety.

The Stop Motor command will send an immediate stop command to the motor. Once stopped the

SCAN SPEED CONTROL

ELEVATION CONTROL AZIMUTH CONTROL

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Reset Motor command must be issued before any positioning or Change Mode commands can be

issued. The Reset Motor command starts the motor and sends it to the home or 0° position. Once

the motor has reached the home position it will automatically enter the position mode. The Get

State command will provides a status message that indicates the current mode of the motor;

position or velocity. The Position Mode and Velocity Mode options are intended to reflect the

status on the server only. The mode is changed by clicking on the Change Mode button. The

Change Mode button in the Azimuth antenna control toggles the Azimuth or Panning antenna

between the Constant Velocity mode (continuous spinning) and the Position mode. When

leaving the Constant Velocity mode the antenna will first return to the home position, 0°, before

entering the Position mode. Absolute position commands should not be issued until the antenna

has returned to the home position (Position Mode option is on). In position mode the slider can

also be used to position the antenna. As the slider is moved by clicking and holding the mouse

left button the angle is reported in the Goto Pos text box. When the slider is released, left mouse

button up, the go to position is transmitted to the AIMS Radar (server).

5.3.3.2 Elevation Control

The Elevation or Tilt motor remains in the Position mode. Adjustments in elevation (tilt) are

made using the slider bar or by clicking on the map (assuming the Move Radar to Point on Map

option is selected). To change the elevation using the slider bar click, hold and move the slider

to the desired angle and release. As the slider is moved the angle will be reflected in the Set El

Pos text box. When released this elevation position will be transmitted to the radar. As the

Antenna moves to a new location the angle will be reported in the Current El Pos text box.

5.3.3.2.1 Tilt Compensation

The checkbox Correct for Radar Tilt enables the software to recalculate the horizon by creating

a new array of elevation settings based upon the tilt information provided by the compass (if

installed).

5.3.3.2.2 Elevation Scan

Elevation scan is used to search an area in the elevation domain where the area being search is

broader than the vertical beamwidth of the antenna. On the completion of each azimuth scan

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range, the elevation is adjusted by the Delta Elevation Angle. Upon the completion of Number of

Rows, the direction of elevation scan is reversed (up-down-up-down…)

The elevation scan is defined by:

• Base Elevation Angle

• Number of Rows

• Delta Elevation Angle

5.3.3.3 Scan Speed Control

Auto Scan is a learning algorithm that tries to set the optimum motor speed dynamically to insure

the desired overlap in azimuth beam positions. It evaluates the min and max ranges for each

angle and the processing speed to determine the best speed setting. It works best for very wide

sector scans and 360° rotation. The Auto Scan control parameters include;

• Enable/disable Auto Scan Speed

• Required Coverage% (1-100%)

• Speed Steps

Also displayed in this area are;

• Actual Coverage %

• Current Scan Rate (deg/sec).

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5.3.4 Adv Process

5.3.4.1 Ramp Functions

The ramp functions are used to digitally lower signal strength over a given range swath. They are

particularly useful for reducing the affects of processing artifacts generated from very large

objects located at close ranges. Large objects at close ranges can reflect so much energy that it

saturates the radar at that range. Saturation can cause false target detection.

The ramp function options include;

• Linear Ramp in Range

o Beginning Range.

o Ending Range

o Percent

• Step Ramp in Range.

o Beginning Range.

o Ending Range

o Percent

Ramp functions lower the signal strength to levels below alarm thresholds. The Beginning Range

indicates the first range bin for which the function is applied and the Ending Range indicates the

final range bin. The Ramp Percent represents that maximum percentage applied to the measured

magnitude (signal strength). So a Ramp Percent value of 30 means that the signal strength will

CLUTTER X RAMP FUNCTIONS

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be reduced to 30% of its current value. Linear Ramp in Range means the reduction is applied

over a linear slope from 0 to Ramp Percent, which the above example is 30%. This linear slope is

applied over the Beginning Ranges to Ending Ranges. Step Ramp in Range means the reduction

is an equal percentage over the entire range swath defined (Beginning Range to Ending Range).

5.3.4.2 Clutter X

Main Lobe Removal (also referred to as Clutter X or clutter notch) allows for the removal of

nuisance alarms around zero Doppler (very slow or non moving objects) by setting all values in

and around 0 Hertz to the Mainlobe Value. Clutter X is very useful for removing the response

from swaying trees, moving water, or windblown heavy brush. Setting Clutter X too high can

reduce the ability of detecting walking humans.

The Main Lobe Removal options include;

• Remove Mainlobe. Enables the main lobe removal.

• Mainlobe Half-Width. The Mainlobe Half-Width represents the number of Doppler bins

(frequency slices) around 0 Hertz that are set. “0” in this text box equals to 0 Hertz only.

“1” in this text box represents one Doppler bin on either side of 0 Hertz is set. Commonly

set values are 0 to 2.

• Mainlobe Value. Appropriate settings for the Mainlobe Value are usually 0 or negative

numbers. (Note: A negative number lowers the plotted color of the notch to black and

thereby, is easier to see when looking at Doppler Plot). However, this value should be set

to zero when Autolobe is being used.

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5.3.5 SaveData

The SaveData Tab is fairly self-explanatory as this tab is used to establish the conditions and

filename attributes that define how Raw IQ data files are saved.

5.3.5.1 Autosave Parameters

The Autosave settings include;

• Automatic Save

• Save Every x dwells.

• Range Limits.

• Azimuth Limits

5.3.5.2 Manual Save Parameters

The manual save settings include;

• Save Detections

• Start Save

o Immediate

o Timed.

 Start Time

 Duration

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5.3.5.3 RawIQ File Saves

The file saving option allows raw IQ data to be stored on the local hard drive in the directory,

c:\Data. The file names used will be the system time preceded by the string value listed in the

text box, “File Name Base”. Enter the desired file name and check the Save RawIQ File box.

Uncheck the box to stop saving data files.

5.3.5.4 Other Parameters

The following values are annotations that are stored with the saved data file(s);

• Ant BW

o Az – Azimuth. The horizontal (or azimuth) beamwidth of the antenna.

o El – Elevation. The vertical (or elevation) beamwidth of the antenna.

• Radar Dir. The absolute bearing of the radar home position. If a digital compass is

installed, this information is updated on initialization or when Update HPR (Compass

Tab) is selected.

• Radar Lat. The geo-positional latitude coordinates of the radar installation. If a GPS is

installed, this information is periodically updated.

• Radar Long. The geo-positional longitude coordinates of the radar installation. If a GPS

is installed, this information is periodically updated.

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5.3.6 Cameras

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5.3.7 Radar

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5.3.8 Max Ranges

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5.3.9 Camera Setup

5.3.9.1 Camera Parameters

For each camera, the settings include;

• Name. Unique name to identify camera setup.

• Type. Camera type (Vicon, Pelco, Pelco-D… etc.). The type identifies the

communications protocol, configurable attributes and default communications

parameters. At current, the AIMS software supports the following types;

o None

o DI5000

o TASS

o QuicksetN2

o Vicon

o PelcoD. If Pelco is selected, the Turbo button is enabled to allow the user to

activate a fast slew.

o LRAD

o SentryII

o Vumii

• Connection

o SerialPort

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 COMM Port

 BaudRate

 DataBit

 StopBit

 Parity

 Cam Address.

o TCPIP

 IPAddress

 Port

• Offsets.

o Look Offset – Az. This offset value defines the azimuth angle difference between

the home pins of the radar and the camera (see drawing below).

o Look Offset – El. This offset value defines the difference in degrees between the

camera look angle (at 0º elevation) and the horizon (up is positive).

o Position Offset – Az. This offset value defines the location (in degrees

clockwise) the camera is positioned relative to the radar home pin.

o Position Offset – Rng. This offset value defines the absolute distance the camera

is positioned relative to the radar (in meters).

o Height. This offset value defines the height the camera is positioned above the

ground.

• IP Address (Video). The IP address of the video codec/server that digitizes the camera’s

output video stream (usually inside the UCM).

• Camera Array. This selection is used to support a very specific application involving

four cameras installed at 90º angles and communicating on a single multidrop serial

communications line. More detail may be found in the DMT document, “Camera

Alignment and Operation Procedures for AIMS EA-System” (dated 1/23/2008).

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5.3.9.2 Point to Mouse Click

This feature allows the user to quickly point any Camera attached to an AIMS Radar to a

geographic point on the Client’s PPI display. This action is performed by selecting the desired

camera for this command, and then clicking the mouse at the point on the PPI display. This

feature is discussed in more detail in the AIMS Client Manual.

5.3.9.3 Point to Radar Detection

Either or both Camera 1 and Camera 2 can be selected to point automatically at detections

reported by the controlling AIMS Radar. This selection can be made by checking the Track to

Alarms checkbox adjacent to the desired camera on the Client or on the Radar. When Track to

Alarms is selected for a camera, that camera will automatically point at each Radar detection as it

is declared.

The function is deactivated by un-checking the Track to Alarms checkbox.

5.3.9.4 AIMS Radar and Camera Alignment

The AIMS Radar software requires that several “alignment” parameters be determined for the

system configuration and entered into the Client and Radar control programs. This section

describes these parameters and illustrates the general procedure for determining their values.

These key alignment parameters are the Radar Direction (RadDir), the Look Offsets for each

camera (LookOffAz, LookOffEl), and the Position Offsets for each camera (PosOffAz,

PosOffRng). They are described briefly as follows:

• Radar Direction – The azimuth angle in degrees, measured positive clockwise, from True

North to the Radar’s look direction

at its home position. That is, the RadDir is the true

bearing of the Radar beam centerline at the Radar home position. This parameter is used

by the AIMS software to calculate the Latitude and Longitude values for detections and

other display symbols on the Client PPI display. If the RadDir is not entered properly in

the AIMS Client and Radar programs, then Latitude/Longitude values calculated by the

Radar will be incorrect.

• Look Offsets – These angles measure the difference (azimuth and elevation) between the

Radar look direction at its home position and the camera look direction at its home

The Radar look direction is the outward direction of the Radar beam centerline.