Novatel OM-20000041 用户手册

Table of Contents

MiLLennium GPSCard Software Version 4.50 Command Descriptions Manual Rev 1

FIGURES

The WAAS Concept ................................................................................................................................. 29

3-1

Pass-Through Log Data ............................................................................................................................ 43

A-1

NAVSTAR Satellite Orbit Arrangement ................................................................................................. 62

A-2

Illustration of GPSCard Height Measurements ........................................................................................ 64

A-3

Accuracy Versus Precision ....................................................................................................................... 65

A-4

Example of Differential Positioning ........................................................................................................ 66

A-5

Single Point Averaging ............................................................................................................................ 69

A-6

Typical Differential Configuration ........................................................................................................... 70

B-1

Illustration of GPS Signal Multipath ........................................................................................................ 73

B-2

Illustration of GPS Signal Multipath vs. Increased Antenna Height ....................................................... 75

B-3

Illustration of Quadrifilar vs. Microstrip Patch Antennae ........................................................................ 76

B-4

Comparison of Multipath Envelopes ........................................................................................................ 78

C-1

HELP Command Screen Display ............................................................................................................. 102

C-2

Appended Command Screen Display ...................................................................................................... 102

C-3

Illustration of Magnetic Variation & Correction ...................................................................................... 107

C-4

Using SEND Command ............................................................................................................................ 121

C-5

Illustration of SETNAV Parameters ........................................................................................................ 127

C-6

Illustration of Undulation ......................................................................................................................... 130

D-1

Example of Navigation Parameters .......................................................................................................... 175

D-2

The WGS84 ECEF Coordinate System ................................................................................................... 185

E-1

Typical RT-2 Horizontal Convergence - Static Mode ............................................................................. 227

E-2

Typical RT-2 Horizontal Convergence - Kinematic Mode ...................................................................... 227

E-3

RT-2 Accuracy Convergence ................................................................................................................... 228

E-4

Illustration of RT-2 Steady State Performance ........................................................................................ 228

E-5

Typical RT-20 Convergence - Static Mode ............................................................................................. 229

E-6

Typical RT-20 Convergence - Kinematic Mode ...................................................................................... 230

E-7

RT-20 Steady State Performance ............................................................................................................. 230

E-8

RT-20 Re-initialization Process ............................................................................................................... 232