Benutzerhandbuch für Novatel OM-20000053 Rev 2

Inhaltsverzeichnis

• OM-20000053 Rev 2

  1
• Table of Contents

  3
• Software License

  10
• Software Support

  11
• Foreword

  12
  • Congratulations!

    12
  • Scope

    12
  • Prerequisites

    12
  • What’s New In This Manual?

    12
• 1Quick Start

  13
  • 1.1 Installation

    13
  • 1.2 Data Logging

    14
  • 1.3 Differential Operation

    16
  • Table 1-1GPSCard Pseudorange Differential Initialization Summary

    17
  • 1.4 RTK Mode

    18
  • Table 1-2Latency-Induced Extrapolation Error

    18
• 2Command Descriptions

  24
  • 2.1 General

    24
  • 2.2 Standard Command Tables

    26
  • Table 2-1Commands By Function Table

    26
  • Table 2-2GPSCard Command Summary

    28
  • 2.3 WAAS

    30
  • Figure 2-1The WAAS Concept

    30
  • 2.4 Special Data Input Commands

    31
• 3Data Logs

  35
  • 3.1 Output Logging

    35
  • 3.2 NovAtel Format Data Logs

    36
  • 3.3 RTK

    37
  • 3.4 NMEA Format Data Logs

    38
  • 3.5 GPS Time vs. Local Receiver Time

    38
  • 3.6 Standard Log Tables

    39
  • Table 3-1Logs By Function Table

    39
  • Table 3-2GPSCard Log Summary

    42
  • 3.7 WAAS

    43
  • 3.8 Pass-Through Logs

    43
  • Figure 3-1Pass-Through Log Data

    44
• 4Message Formats

  46
  • Table 4-1Positioning Modes

    46
  • 4.1 RTCA-Format Messages

    46
  • 4.2 RTCM-Format Messages

    48
  • 4.3 CMR Format Messaging

    56
  • 4.4 RINEX Format

    57
• AGPS Overview

  63
  • Figure A-1NAVSTAR Satellite Orbit Arrangement

    63
  • A.1 GPS System Design

    63
  • A.2 Height Relationships

    64
  • Figure A-2Illustration of GPSCard Height Measurements

    65
  • A.3 GPS Positioning

    65
  • Figure A-3Accuracy versus Precision

    66
  • Figure A-4Example of Differential Positioning

    67
  • Figure A-5Single Point Averaging

    71
  • Figure A-6Typical Differential Configuration

    72
  • A.4 Carrier-Phase Algorithms

    73
• BMultipath Elimination Technology

  75
  • B.1 Multipath

    75
  • Figure B-1Illustration of GPS Signal Multipath

    75
  • B.2 Hardware Solutions For Multipath Reduction

    76
  • Figure B-2Illustration of GPS Signal Multipath vs. Increased Antenna Height

    77
  • Figure B-3Illustration of Quadrifilar vs. Microstrip Patch Antennae

    78
  • Figure B-4Comparison of Multipath Envelopes

    80
• CCommands Summary

  81
  • Table C-1Antenna LNA Power Configuration

    83
  • Table C-2Default Values of Process Noise Elements

    97
  • Figure C-1HELP Command Screen Display

    104
  • Figure C-2Appended Command Screen Display

    104
  • Figure C-3Illustration of Magnetic Variation & Correction

    109
  • Figure C-4Using SEND Command

    123
  • Figure C-5Illustration of SETNAV Parameters

    129
  • Figure C-6 Illustration of Undulation

    132
• DLogs Summary

  138
  • Log Descriptions

    138
  • Table D-1GPSCard Solution Status

    144
  • Table D-2Position Type

    145
  • Table D-3RTK Status for Position Type 3 (RT-20)

    145
  • Table D-4RTK Status for Position Type 4 (RT-2)

    145
  • Figure D-1Example of Navigation Parameters

    177
  • Figure D-2The WGS84 ECEF Coordinate System

    187
  • Table D-5Receiver Self-Test Status Codes

    198
  • Table D-6Range Record Format (RGED only)

    201
  • Table D-7Channel Tracking Status

    203
  • Table D-8Ambiguity Types

    211
  • Table D-9Searcher Status

    211
  • Table D-10RTK Status

    211
  • Table D-11 GPSCard Range Reject Codes

    215
  • Table D-12 GPSCard Velocity Status

    223
  • Table D-13Health and Status Bits

    225
  • Table D-14Data ID Type

    225
  • Data ID

    225
  • Type (Service Provider)

    225
  • Table D-15UTC Standard Identifier

    230
• EComparison Of RT-2 And RT-20

  231
  • E.1 RT-2 & RT-20 Performance

    231
  • Table E-1Comparison of RT-2 and RT-20

    231
  • Table E-2RTK Messages Vs. Accuracy

    231
  • Table E-3RT-2 Performance: Static Mode

    232
  • Table E-4RT-2 Performance: Kinematic Mode

    232
  • Table E-5RT-2 Degradation With Respect To Data Delay ¿

    232
  • Figure E-1Typical RT-2 Horizontal Convergence - Static Mode

    233
  • Figure E-2Typical RT-2 Horizontal Convergence - Kinematic Mode

    233
  • Figure E-3RT-2 Accuracy Convergence

    234
  • Figure E-4Illustration of RT-2 Steady State Performance

    234
  • Table E-6RT-20 Performance

    235
  • Figure E-5Typical RT-20 Convergence - Static Mode

    235
  • Figure E-6Typical RT-20 Convergence - Kinematic Mode

    236
  • Figure E-7RT-20 Steady State Performance

    236
  • E.2 Performance Considerations

    237
  • Figure E-8RT-20 Re-initialization Process

    238
• FStandards and References

  239
• GGeodetic Datums

  240
  • Table G-1Reference Ellipsoid Constants

    240
  • Table G-2Transformation Parameters (Local Geodetic to WGS84)

    240
• HSome Common Unit Conversions

  242
  • H.3Temperature H.4Weight

    242
  • H.5Hexadecimal And Binary Equivalents

    242
  • H.6GPS Time of Week to Calendar Day (example)

    243
• IInformation Messages

  244
  • Type 1 Information Messages

    244
  • Table I-1Type 1 !ERRA Types

    244
  • Table I-2Type 1 !MSGA Types

    245
  • Type 2 Information Messages

    245
• JListing Of Tables

  248
• KGPS Glossary of Terms

  267
• LGPS Glossary of Acronyms

  275