【摘 要】
：
Owing to the singleness of GPS dual-frequency cartier phase combination mode,the ionosphere residual error becomes larger in case of unstable ionosphere or low sampling rate and its accuracy is influe
【机 构】
：
State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University,Beijing,China
论文部分内容阅读
Owing to the singleness of GPS dual-frequency cartier phase combination mode,the ionosphere residual error becomes larger in case of unstable ionosphere or low sampling rate and its accuracy is influenced,however,the diversity of Beidou triple-frequency combination mode makes it possible for improving the accuracy.In this paper,Beidou triple-frequency carrier observation equation was combined and ionosphere residual error combined equation was deduced.Based on the analysis of the main cause of the ionosphere residual error,a method that chooses different combination coefficients according to the sampling rote was proposed,which improved the ionosphere residual method accuracy.This paper proves its effectiveness through the Beidou-2 satellite data and enhances the ability to cycle-slip detection and reparation.
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