Characteristics of seasonal variations and noises of the daily double-difference and PPP solutions
Characteristics of seasonal variations and noises of the daily double-difference and PPP solutions
复制标题
每日双差和PPP解决方案的季节变化和噪声特征
DOI：
10.1515/jag-2020-0042
复制
发表时间：
2020-12
影响因子：
1.4
通讯作者：
Chang Xu
中科院分区：
文献类型：
--
作者：
Kamil Maciuk;Inese Vārna;Chang Xu
摘要 由连续运行参考站（CORS）网络提供的长期全球导航卫星系统（GNSS）观测能够确定全球和局部的构造板块运动以及季节性变化。近年来，精密单点定位（PPP）
Abstract Long term GNSS observations provided by networks of the continuously operating reference stations (CORS) allow for determination of the global and local tectonic plate movements and seasonal variations. In recent years, PPP (Precise Point Positioning) technique has become increasingly popular and most likely in the future will replace relative positioning with CORS stations. In this paper, we discuss the difference of the velocity and seasonal component estimates of 25 Latvian CORS stations on the basis of daily PPP solutions from the Nevada Geodetic Laboratory and double-difference solutions from the Institute of Geodesy and Geoinformatics of the University of Latvia. Time series of each coordinate component for 9-year time period were determined by the usage of the Tsview software and seasonal existence of linear, annual, semi-annual factors and their uncertainties were determined. Breaks (e. g., antenna and receiver changes) were also taken into account. We then assessed the noise characteristics of these time series with the use of overlapping Hadamard variance (OHVAR). The result shows that OHVAR is computationally cheap, and the dominating power-law noise, including flicker and random walk. However Hadamard deviation of the PPP and double-difference solutions scatters differently for a whole year averaging time due to the different GNSS data strategies.
登录
查看更多内容
影响因子：
4.4
作者：
A. Santamaría‐Gómez;C. Watson;M. Gravelle;Matt A. King;G. Wöppelmann
通讯作者：
A. Santamaría‐Gómez;C. Watson;M. Gravelle;Matt A. King;G. Wöppelmann
DOI：
10.1029/2019jb018034
发表时间：
2020-02
期刊：
Journal of Geophysical Research: Solid Earth
影响因子：
--
作者：
Anna R. Riddell;Matt A. King;C. Watson
通讯作者：
Anna R. Riddell;Matt A. King;C. Watson
DOI：
10.1007/978-3-540-85426-5_66
发表时间：
2009
期刊：
--
影响因子：
--
作者：
M. Lidberg;J. Johansson;H. Scherneck;G. Milne;James L. Davis
通讯作者：
M. Lidberg;J. Johansson;H. Scherneck;G. Milne;James L. Davis
DOI：
10.6028/nist.sp.1065
发表时间：
2008
期刊：
--
影响因子：
--
作者：
W. J. Riley;W. J. Riley;James A. Barnes
通讯作者：
W. J. Riley;W. J. Riley;James A. Barnes
DOI：
10.1017/cbo9781139207249.009
发表时间：
2012
期刊：
--
影响因子：
--
作者：
W. Marsden
通讯作者：
W. Marsden