Abstract：Double difference carrier phase observations have good smoothness, because they eliminate the common errors.After differencing between adjacent epochs in double difference observation sequences,cycle slips act as gross errors.When using Chebyshev polynomial for fitting double difference observations, taking into account of the thoughts of robust estimation,the order of Chebyshev polynomial fitting and the length of fitting arc, cycle slips detection and correction for singlefrequency GPS data based on sliding window of Chebyshev polynomial fitting of robust estimation was proposed. L1frequency carrier phase data with sampling interval of 60 seconds and 15 seconds were applied for the test.Test results show that this algorithm can effectively detect multiepoch cycle slips and continuous cycle slips, and cycle slips can be accurately repaired.
Liu Ning,Xiong Yongliang,and Xu Shaoguang. CYCLE SLIP DETECTION AND CORRECTION FOR SINGLE-FREQUENCYGPS DATA BASED ON SLIDING WINDOW OF CHEBYSHEV POLYNOMIAL FITTING OF ROBUST ESTIMATION[J]. jgg, 2011, 31(2): 94-98.
