Mathematical Problems in Engineering / 2019 / Article / Tab 1

Research Article

The Coarse-Position-Free Coarse-Time Positioning Method for BDS Receiver

Table 1

Different types of code phase observations generated by BeiDou receiver at different positioning stages.

positioning stagesBeiDou MEO satelliteBeiDou IGSO satelliteBeiDou GEO satellite

Signal acquisitionSub-1 ms code phaseSub-1 ms code phaseSub-1 ms code phase
Bit synchronizationSub-20 ms code phaseSub-20 ms code phaseSub-2 ms code phase
Frame synchronizationComplete pseudorangeComplete pseudorangeComplete pseudorange

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