Progress on Reduction of Non-Tectonic Noise in GPS Position Time Series
详细信息
- 责任者：Tian Yunfeng (Institute of Geology ; China Earthquake Administration ; Beijing 100029 ; China) ; Shen Zhengkang
- 刊名：Acta Seismologica Sinica
- 出版年：2009
- 卷期：31(1)
- 关键词：全球定位系统 ; Global Positioning System
- 页码：p.68-81
- 图表：1 illus., 60 refs.
- 分类号：2100
- issnNo：ISSN0253-3782
- isbnNo：CN11-2021/P
摘要
In this paper, various currently used methods to analyze and reduce non-tectonic noises are presented, such as power spectrum analysis, maximum likelihood estimator, regional stacking, principal component analysis, and deformation modeling under the loading of surface water/atmosphere mass. These methods are useful in deriving the spectral indices and amplitudes of colored noises, and helping understand the physical sources of the common-mode errors. The pros and cons of various techniques, as well as the future research directions, are also discussed.