Novatel OM 20000041 User Manual To The 6521ead2 4a22 4d6b Add7 Ccee61b90444

User Manual: Novatel OM-20000041 to the manual

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OM-20000041 Rev 1
Proprietary Notice
- Table of Contents
- Software License
- Software Support
- Foreword
Congratulations!
Scope
Prerequisites
What’s New In Version 4.50?
- 1Quick Start
1.1 Installation
Graphical Interface
1.2 Data Logging
1.3 differential operation
Establish a Data Link
Table 1-1GPSCard Pseudorange Differential Initialization Summary
Initialization - Reference Station
1.4rtk mode
Data Communications Link
Table 1-2Latency-Induced Extrapolation Error
System Initialization
Monitoring Your RTK Output Data
Options for Logging Differential Corrections
Initialization - Rover Station
- 2Command Descriptions
2.1 GENERAL
Optional calculation of the checksum
2.2 Standard Command Tables
Table 2-1Commands By Function Table
Table 2-2GPSCard Command Summary
2.3WAAS
Figure 2-2The WAAS Concept
2.3.1 WAAS GPSCard
2.4Special Data Input Commands
2.4.1 Almanac Data
2.4.2 Differential Corrections Data
- 3Data Logs
3.1 Output logging
3.2 NovAtel Format Data Logs
General
ASCII Log Structure
Binary Log Structure
3.3 RTK
3.4 NMEA format data Logs
General
3.5 GPS Time vs. Local Receiver Time
3.6 Standard Log Tables
Table 3-1Logs By Function Table
Table 3-2GPSCard Log Summary
3.7WAAS
3.7.1WAAS GPSCard Logs
3.8Pass-Through Logs
Figure 3-1 Pass-Through Log Data
3.8.1Command Syntax
3.8.2 ASCII Log Structure
3.8.3Binary Log Structure
- 4Message Formats
Table 4-1Positioning Modes
4.1 RTCA-format Messages
RTCA STANDARD LOGS
4.2 RTCM-format Messages
RTCM General Message Format
RTCM Standard Commands
RTCM Standard Logs
4.3 CMR Format messaging
Using RT-2 or RT-20 with CMR Format Messages
4.4RINEX Format
4.4.1 COMMANDS
4.4.2 LOGS
- AGPS Overview
Figure A-1 NAVSTAR Satellite Orbit Arrangement
a.1 GPS System Design
The Space Segment
The Control Segment
The User Segment
A.2 Height Relationships
Figure A-2Illustration of GPSCard Height Measurements
a.3 GPS Positioning
Figure A-3Accuracy versus Precision
Single-point vs. Relative Positioning
Figure A-4Example of Differential Positioning
Static vs. Kinematic Positioning
Real-time vs. Post-mission Data Processing
A.3.1 Differential Positioning
a.3.2 Pseudorange Algorithms
Pseudorange Differential Positioning
Figure A-5Single Point Averaging
Dual Station Differential Positioning
Figure A-6Typical Differential Configuration
a.4 Carrier-phase Algorithms
- BMultipath Elimination Technology
b.1 Multipath
Figure B-1Illustration of GPS Signal Multipath
Why Does Multipath Occur?
Consequences of Multipath Reception
b.2 Hardware Solutions For Multipath Reduction
Antenna Site Selection
Figure B-2Illustration of GPS Signal Multipath vs. Increased Antenna Height
Antenna Designs
Figure B-3Illustration of Quadrifilar vs. Microstrip Patch Antennae
Antenna Ground Planes
NovAtel’s Internal Receiver Solutions for Multipath Reduction
Figure B-4Comparison of Multipath Envelopes
- C Commands Summary
ACCEPT
ANTENNAPOWER
Table C-1Antenna LNA Power Configuration
ASSIGN
CLOCKADJUST
COMn
COMn_DTR
COMn_RTS
CONFIG
CRESET
CSMOOTH
DATUM
DGPSTIMEOUT
DIFF_PROTOCOL Differential Protocol Control
DYNAMICS
ECUTOFF
EXTERNALCLOCK
Table C-2Default Values of Process Noise Elements
EXTERNALCLOCK FREQUENCY
FIX HEIGHT
FIX POSITION
FIX VELOCITY
FREQUENCY_OUT
FRESET
HELP
Figure C-1HELP Command Screen Display
Figure C-2Appended Command Screen Display
IONOMODEL waas
LOCKOUT
LOG
MAGVAR
Figure C-3Illustration of Magnetic Variation & Correction
MESSAGES
POSAVE
RESET
RESETHEALTH
RESETHEALTHALL
RINEX Receiver-Independent Exchange Format
RTCM16T
RTCMRULE
RTKMODE
SAVEALMA
SAVECONFIG
SEND
Figure C-4Using SEND Command
SENDHEX
SETDGPSID
SETHEALTH
SETL1OFFSET
SETNAV
Figure C-5Illustration of SETNAV Parameters
SETTIMESYNC
UNASSIGN
UNASSIGNALL
UNDULATION
Figure C-6 Illustration of Undulation
UNFIX
UNLOCKOUT
UNLOCKOUTALL
UNLOG
UNLOGALL
USERDATUM
VERSION
WAASCORRECTION waas
- DLogs summary
Log Descriptions
ALMA/B Decoded Almanac
BSLA/B Baseline Measurement RTK
Table D-1GPSCard Solution Status
Table D-2Position Type
Table D-3RTK Status for Position Type 3 (RT-20)
Table D-4RTK Status for Position Type 4 (RT-2)
CDSA/BCommunication and Differential Decode Status
CLKA/B Receiver Clock Offset Data
CLMA/B Receiver Clock Model
CMR Standard Logs
COM1A/B and COM2A/BPass-Through Logs
DOPA/B Dilution of Precision
ETSA/B Extended Tracking Status
FRMA/B Framed Raw Navigation Data
GGAB Global Position System Fix Data (Binary Format Only)
GPALM Almanac Data
GPGGA Global Position System Fix Data
GPGLL Geographic Position
GPGRS GPS Range Residuals for Each Satellite
GPGSA GPS DOP and Active Satellites
GPGST Pseudorange Measurement Noise Statistics
GPGSV GPS Satellites in View
GPRMB Navigation Information
GPRMC GPS Specific Information
GPVTG Track Made Good And Ground Speed
GPZDA UTC Time and Date
GPZTG UTC & Time to Destination Waypoint
MKPA/B Mark Position
MKTA/B Time of Mark Input
NAVA/B Waypoint Navigation Data
Figure D-1 Example of Navigation Parameters
PAVA/B Position Averaging Status
POSA/B Computed Position
PRTKA/B Computed Position (RTK)
PVAA/B XYZ Position, Velocity and Acceleration
PXYA/B Computed Cartesian Coordinate Position
Figure D-2The WGS84 ECEF Coordinate System
RALA/B Raw Almanac
RASA/B RAW ALMANAC SET
RBTA/B Satellite Broadcast Data: Raw Bits
RCCA Receiver Configuration
RCSA/B Receiver Status
REPA/B Raw Ephemeris
RGEA/B/D Channel Range Measurements
Table D-5Receiver Self-Test Status Codes
Table D-6Range Record Format (RGED only)
Table D-7Channel Tracking Status
RINEX
RPSA/B Reference Station Position and Health
RTCA Standard Logs
RTCM Standard Logs
RTKA/B Computed Position - Time Matched RTK
RTKOA/B RTK Solution Parameters RTK
Table D-8Ambiguity Types
Table D-9Searcher Status
Table D-10RTK Status
RVSA/B Receiver Status
SATA/B Satellite Specific Data
Table D-11 GPSCard Range Reject Codes
SPHA/B Speed and Direction Over Ground
SVDA/BSV Position in ECEF XYZ Coordinates with Corrections
TM1A/B Time of 1PPS
VERA/B Receiver Hardware and Software Version Numbers
VLHA/B Velocity, Latency, and Direction over Ground
Table D-12 GPSCard Velocity Status
WALA/B WAAS Almanac waas
Table D-13Health and Status Bits
Table D-14Data ID Type
Data ID
Type (Service Provider)
WRCA/B Wide Band Range Correction (Grouped Format)
- EComparison Of RT-2 And RT-20
E.1 RT-2 & RT-20 Performance
Table E-1Comparison of RT-2 and RT-20
Table E-2RTK Messages Vs. Accuracy
RT-2 Performance
Table E-3RT-2 Performance: Static Mode
Table E-4RT-2 Performance: Kinematic Mode
Table E-5RT-2 Degradation With Respect To Data Delay ¿
Figure E-1Typical RT-2 Horizontal Convergence - Static Mode
Figure E-2Typical RT-2 Horizontal Convergence - Kinematic Mode
Figure E-3RT-2 Accuracy Convergence
Figure E-4Illustration of RT-2 Steady State Performance
RT-20 Performance
Table E-6RT-20 Performance
Figure E-5 Typical RT-20 Convergence - Static Mode
Figure E-6Typical RT-20 Convergence - Kinematic Mode
Figure E-7RT-20 Steady State Performance
E.2 Performance Considerations
Performance Degradation
Figure E-8RT-20 Re-initialization Process
- FStandards and References
- GGeodetic Datums
Table G-1Reference Ellipsoid Constants
Table G-2Transformation Parameters (Local Geodetic to WGS84)
- HSome Common Unit Conversions
H.3Temperature H.4Weight
H.5Hexadecimal And Binary Equivalents
H.6GPS Time of Week to Calendar Day (example)
H.6.1 Calendar Date to GPS Time (e.g. 11:30 hours, January 22, 1995)
- IInformation Messages
Type 1 Information Messages
!ERRA
Table I-1Type 1 !ERRA Types
!MSGA
Table I-2Type 1 !MSGA Types
Type 2 Information Messages
- JListing Of Tables
Table 1-1GPSCard Pseudorange Differential Initialization Summary
Table 1-2Latency-Induced Extrapolation Error
Table 2-1Commands By Function Table
Table 2-2GPSCard Command Summary
Table 3-1Logs By Function Table
Table 3-2GPSCard Log Summary
Table 4-1Positioning Modes
Table C-1Antenna LNA Power Configuration
Table C-2Default Values of Process Noise Elements
Table C-3VARF Range (Software Version 4.42 or higher)
Table D-1GPSCard Solution Status
Table D-2Position Type
Table D-3RTK Status for Position Type 3 (RT-20)
Table D-4RTK Status for Position Type 4 (RT-2)
Table D-5Receiver Self-Test Status Codes
Table D-6Range Record Format (RGED only)
Table D-7Channel Tracking Status
Table D-8Ambiguity Types
Table D-9Searcher Status
Table D-10RTK Status
Table D-11 GPSCard Range Reject Codes
Table D-12 GPSCard Velocity Status
Table E-1Comparison of RT-2 and RT-20
Table E-2RTK Messages Vs. Accuracy
Table E-3RT-2 Performance: Static Mode
Table E-4RT-2 Performance: Kinematic Mode
Table E-5RT-2 Degradation With Respect To Data Delay 1
Table E-6RT-20 Performance
- KGPS Glossary of Terms
- LGPS Glossary of Acronyms
- MIndex
- OM-20000041 Rev 1 98/11/03

Novatel OM 20000041 User Manual To The 6521ead2 4a22 4d6b Add7 Ccee61b90444

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