摘要
利用小波工具剔除噪声的思想对全球部分GPS测站坐标残差序列进行应用试验。通过选取特定的阈值和小波基函数,成功提取出GPS测站坐标残差序列的一些非线性周期规律,对于进一步深入研究GPS测站坐标非线性变化规律有重要意义。
Experiments are made on parts of global GPS coordinate residuals with the theory of wavelet decomposition. The specific thresholds and wavelet functions are selected to find some non-linear movements in GPS coordinate residuals. It is of great significance for deeper studying on GPS coordinate nonqinear movements.
出处
《测绘工程》
CSCD
2013年第1期44-46,50,共4页
Engineering of Surveying and Mapping
基金
国家自然科学基金资助项目(41074011)
关键词
小波分析
GPS测站坐标残差序列
去噪
阈值选取
wavelet analysis
GPS coordinate residuals
detection of outliers
selection of threshold
