Abstract：To counter the characteristics of Beidou navigation satellites’ large clock error and signaltonoise, a suitable combined method for cycle slips detection and correction is proposed. Firstly, the limits of two frequency cycle slip can be determined by the combination of singlefrequency and code, then the least squares polynomial fitting would be performed based on dualfrequency data considering the change rate of carrier phase. The cycle slips would be demarcated and outliers would be rejected by the Blewitt method to test fitting results. The cycle slips, being an integer, can be restored by means of minimize the residuals. The test on COMPASSMEO satellites’ data verifies that the proposed algorithm can detect all cycle slips and fix it quickly in static and lowdynamic measurements.
Wu Fengbo,Zhang Shubi,Zhang Qiuzhao et al. AN ALGORITHM FOR CYCLE SLIPS DETECTION AND CORRECTION
BASED ON COMPASS DUAL-FREQUENCY DATA[J]. jgg, 2013, 33(5): 140-144.
