2014•Cehui kexueRequires access

Relative positioning models and their precision analysis for combined GPS/BDS

Zhang Chen-x

Abstract

BeiDou Satellite(BDS)navigation system has been able to meet the needs of navigation and positioning in the Asia-Pacific region by the end of 2012.In this paper,directing at the relative positioning mode,the relative positioning models of pseudo-range and carrier phase for GPS/BDS combined positioning were given.Finally,it analysed the availability of BDS system and the accuracy of GPS/BDS combined positioning by the observations results of test data.The feasibility of the combined models was verified,and the result would provide a reference to the promotion and application of the BDS.

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Key concepts: Global Positioning System, BeiDou Navigation Satellite System, Precise Point Positioning, Computer science, Geodesy, Geography, Mode (computer interface), Positioning system