Arid
DOI10.1007/s10291-015-0478-9
On the significance of periodic signals in noise analysis of GPS station coordinates time series
Bogusz, Janusz; Klos, Anna
通讯作者Klos, Anna
来源期刊GPS SOLUTIONS
ISSN1080-5370
EISSN1521-1886
出版年2016
卷号20期号:4页码:655-664
英文摘要

Each of the GPS-derived time series consists of the deterministic (functional) and stochastic part. We propose that the deterministic part includes all periodicities from 1st to 9th harmonics of residual Chandler, tropical and draconitic periods and compare it with commonly used calculations of the annual and semi-annual tropical curve. Then, we address the issues of whether all residual periodicities, as proposed here, need to be taken into consideration when performing noise analysis. We use the position time series from 180 International GNSS Service stations obtained at the Jet Propulsion Laboratory using the GIPSY-OASIS software in a Precise Point Positioning mode. The longest series has 22.1 years of GPS daily solutions. The spectral indices range from -0.12 to -0.92, while the median values of "global" spectral indices are equal to: -0.41 +/- 0.15, -0.38 +/- 0.12 and -0.33 +/- 0.18 for North, East and Up components, respectively. All non-modelled geophysical processes or non-included artificial effects in time series lead to an underestimation of errors of velocities, but also to changes in the velocity values themselves. The proposed assumption of seasonals subtraction caused the Akaike information criterion values to show a decrease in the median value of 30 %, which in fact means that all the seasonals mentioned here must be taken into account when analyzing noises. Finally, we noticed that there are some of the GPS stations that improved their velocity uncertainty even of 56 %.


英文关键词Seasonal signals Noise analysis PPP solution GPS IGS
类型Article
语种英语
国家Poland
收录类别SCI-E
WOS记录号WOS:000384421600005
WOS关键词SPACED DATA ; HARMONICS ; OFFSETS ; ERRORS
WOS类目Remote Sensing
WOS研究方向Remote Sensing
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/193340
作者单位Mil Univ Technol, Fac Civil Engn & Geodesy, Kaliskiego St 2, PL-00908 Warsaw, Poland
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Bogusz, Janusz,Klos, Anna. On the significance of periodic signals in noise analysis of GPS station coordinates time series[J],2016,20(4):655-664.
APA Bogusz, Janusz,&Klos, Anna.(2016).On the significance of periodic signals in noise analysis of GPS station coordinates time series.GPS SOLUTIONS,20(4),655-664.
MLA Bogusz, Janusz,et al."On the significance of periodic signals in noise analysis of GPS station coordinates time series".GPS SOLUTIONS 20.4(2016):655-664.
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