测绘科学技术学报Issue(1)：22-26,31,6.DOI:10.3969/j.issn.1673￣6338.2015.01.005
利用小波阈值消噪改进M￣W组合周跳探测性能
Improving the Performance of M￣W Combined Observation on Cycle Slip Detection Using Wavelet Threshold De￣Noising
摘要
Abstract
Affected by the pseudorange noise it was difficult to detect cycle slips correctly and completely using M￣W combined observation in Turbo Edit algorithm. First an analysis on the error property of M￣W combination was made and the actual ability of cycle slip detection was evaluated including leak detection and latency issue. Wave￣let threshold de￣noising method and Visushrink threshold estimation method were taken to deal with the M￣W com￣bined observations which could weaken the pseudorange noise and make cycle slip more recognizable. Cycle slip would spread out after de￣noising which meant that the test parameters would exceed the threshold at multiple ep￣och making it easier to detect. It was found that the cycle slip of 1 cycle could be located easily after wavelet de￣noising and the reliability was enhanced.关键词
周跳探测/小波变换/M-W组合/消噪/漏检Key words
cycle slip detection/wavelet transform/M-W combination/de￣noising/leak detection分类
天文与地球科学引用本文复制引用
戚国宾,甘雨,隋立芬,肖国锐,刘乾坤..利用小波阈值消噪改进M￣W组合周跳探测性能[J].测绘科学技术学报,2015,(1):22-26,31,6.基金项目
国家自然科学基金项目(41274016；41174006；40974010)。 （41274016；41174006；40974010）
