CSI Wireless Seres, Reference Manual

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Seres Reference Manual
vii
Table of Contents
List of Figures........................................................................................................................... xiii
List of Tables............................................................................................................................. xv
Preface ..................................................................................................................................... xvii
Organization................................................................................................................. xviii
Customer Service..........................................................................................................xix
World Wide Web Site..................................................................................................xx
Document Conventions................................................................................................xx
Notes, Cautions, and Warnings..................................................................................xx
Introduction ................................................................................................................................ 1
1.1 GPS........................................................................................................................... 1
1.1.1 How it Works........................................................................................... 1
1.1.2 GPS Services ............................................................................................. 2
1.2 Differential GPS...................................................................................................... 2
1.2.1 How it Works........................................................................................... 3
1.2.2 Real-Time DGPS ...................................................................................... 3
1.3 DGPS Format.......................................................................................................... 3
1.4 Factors Affecting DGPS Accuracy...................................................................... 4
1.4.1 Proximity of the Reference Station ....................................................... 5
1.4.2 Correction Latency.................................................................................. 7
1.4.3 Satellite Constellation Geometry........................................................... 7
1.4.4 GPS Signal Multipath ............................................................................... 8
1.4.5 GPS Receiver Quality.............................................................................. 8
1.5 Space Based Augmentation Systems................................................................... 8