GNSS CYCLE SLIP DETECTION AND CORRECTION USING ROBUST
POLYNOMIAL FITTING
1）College of Geomatics,Shandong University of Science and Technology, Qingdao 266590
Abstract The ability of polynomial fitting for detecting and correcting cycle slips is strongly affected by the errors of the carrier phase observations and the intervals of the observation data. The observation data being divided into several pieces will improve the results, however, the efficiency will be decreased.A method for combining epochdifferenced with robust estimation to improve the method of polynomial fitting is proposed. The numerical experiment is performed by using the real data of GPS /GLONASS. The results indicate that the method of robust polynomial fitting is more rigorous in theory and more powerful in practice for detecting and correcting cycle slips comparing with the normal polynomial fitting method.
Key words ：
polynomial fitting
epoch-differenced
robust estimation
GPS/GLONASS
detection and correction for cycle slips
Received: 19 November 2012
Published: 18 June 2013
Cite this article:
Wang Fuli,Cheng Yingyan,Wei Cheng et al. GNSS CYCLE SLIP DETECTION AND CORRECTION USING ROBUST
POLYNOMIAL FITTING[J]. jgg, 2013, 33(3): 129-132.
Wang Fuli,Cheng Yingyan,Wei Cheng et al. GNSS CYCLE SLIP DETECTION AND CORRECTION USING ROBUST
POLYNOMIAL FITTING[J]. jgg, 2013, 33(3): 129-132.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2013/V33/I3/129
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