摘要
阐述了可通过1个参数因子来调节前后差分点个数的思路,研究了利用小波分析来平滑原始资料和探测GPS相位观测值周跳的方法,并通过CHAMP卫星实测数据进行分析,得出一些有益的结论。实践表明,该方法提高了周跳探测的有效性。
A new idea is put forward that the number of difference point can adjust by a parameter factor. The authors study this method to smooth raw data and detect cycle-slip with wavelet analysis. Taking CHAMP satellite data for example, the authors get some signifi- cant conclusions. It is showed that it is valid to detect cycle-slip in GPS phase measurement based on this wavelet function; and it is helpful to improve the precision of GPS data preprocessing and positioning.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2008年第6期639-643,共5页
Geomatics and Information Science of Wuhan University
基金
地理空间信息工程国家测绘局重点实验室资助项目(200710)
基础地理信息与数字化技术山东省重点实验室开放研究基金资助项目(SD060804)
关键词
GPS
相位观测
小波分析
周跳探测
GPS
phase measurement
wavelet analysis
cycle-slip detection
