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An Automatic cycle-slip Processing Method and Its Precision Analysis

Geo-Spatial Information Science 2006年第2期9卷 94-98页

作者： ZHENG Zuoya LU Xiushan Shandong University of Science and Technology Qingdao 266510 China

On the basis of analyzing and researching the current algorithms of cycle-slip detection and correction, a new method of cycle-slip detection and correction is put forward in this paper, that is, a reasonable cycle-slip detection condition and algorithm with corresponding program COMPRE (COMpass PRE-processing) to detect and correct cycle-slip automatically, compared with GIPSY and GAMIT software, for example, it is proved that this method is effective and credible to cycle-slip detection and correction in GPS data pre-processing.

关键词： GPS cycle-slip detection correction ambiguity

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INS-Aided Single-Frequency cycle-slip Detection for Real-Time Kinematic GNSS

INS-Aided Single-Frequency Cycle-Slip Detection for Real-Tim...

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第九届中国卫星导航学术年会

作者： Lingxuan Wang Yu Gan Erhu Wei Lifen Sui Xuexi Liu School of Geodesy and Geomatics Wuhan University Information Engineering University

GNSS ambiguity fixed solution can greatly improve the accuracy of GNSS/INS integrated *** it is difficult to achieve perfect real-time dynamic single frequency cycle-slip detection merely by GNSS observations especially in complex *** assisted cycle-slip detection terms(DTs) based on station-satellite double-differences and satellite single-difference observations are *** error characteristic of the DT is analyzed *** DT error is affected by the drift of INS *** addition,the magnitude of the influence on different satellites is related to the angle between its station-satellite vector and that that vector of the reference ***,it is important to select reference *** is proposed that two group of DTs can be used together by selecting two different reference *** threshold of detection is estimated in a sliding window,where the DTs,whose INS error is submerged in GNSS error,are removed in order to reflect INS *** method of threshold estimating has stronger self-adaptability.

关键词： GNSS/INS cycle-slip Single frequency Reference satellite Sliding window Azimuth

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