基于小波变换的GPS周跳探测  

The Detection of GPS Cycle Slip Based on the Wavelet Transform

作　　者：吕晶晶[1] 汪登辉[1] 潘树国[1] 

机构地区：[1]东南大学,江苏南京210096

出　　处：《现代测绘》2013年第2期3-5,9,共4页Modern Surveying and Mapping

摘　　要：详细概述了GPS周跳产生的原因及其探测周跳的重要性。利用小波分析方法对常用的GPS周跳检测量进行了周跳探测,并将结果与其他常规周跳探测方法进行了比较。通过实际数据测试,结果表明,采用bior3.1进行周跳探测并以电离层残差与宽巷载波减窄巷伪距的值作为检测值可以精确修复各频段上周跳,具有实际工程应用意义。Summarized the causes of GPS cycle slip and the importance of deteceing cycle slip. By using wavelet analysis methods detected the commonly used GPS cycle slip detection level and compared the results with other conventional cycle slip detection methods. The results of the real data test show that when using the bior3. 1 for cycle slip detection and with the ionosphere residuals and wide lane carrier minus narrow lane pseudorange value as values can accurate repair every cycle slip of each frequency. This method is significant for practical engineering application.

关 键 词：GPS信号 小波变换 周跳 bior小波 

分 类 号：P228[天文地球—大地测量学与测量工程]