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DOI | 10.1002/2017GL072808 |
Integrating GPS with GLONASS for high-rate seismogeodesy | |
Geng, Jianghui; Jiang, Peng; Liu, Jingnan | |
2017-04-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | High-rate GPS is a precious seismogeodetic tool to capture coseismic displacements unambiguously and usually improved by sidereal filtering to mitigate multipath effects dominating the periods of tens of seconds to minutes. We further introduced GLONASS (Globalnaya navigatsionnaya sputnikovaya sistema) data into high-rate GPS to deliver over 2000 24h displacements at 99 stations in Europe. We find that the major displacement errors induced by orbits and atmosphere on the low-frequency band that are not characterized by sidereal repeatabilities can be amplified markedly by up to 40% after GPS sidereal filtering. In contrast, integration with GLONASS can reduce the noise of high-rate GPS significantly and near uniformly over the entire frequency band, especially for the north components by up to 40%, suggesting that this integration is able to mitigate more errors than only multipath within high-rate GPS. Integrating GPS with GLONASS outperforms GPS sidereal filtering substantially in ameliorating displacement noise by up to 60% over a wide frequency band (e.g., 2s-0.5days) except a minor portion between 100 and 1000s. High-rate multi-GNSS (Global Navigation Satellite System) can be enhanced further by sidereal filtering, which should however be carefully implemented to avoid adverse complications of the noise spectrum of displacements. |
英文关键词 | high-rate multi-GNSS sidereal filtering seismology multipath spatiotemporal filtering earthquake early warning |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400186500020 |
WOS关键词 | EARTHQUAKE ; DISPLACEMENTS ; SEISMOLOGY ; RESOLUTION ; ILLAPEL ; SYSTEM ; MOTION ; BIASES ; CHILE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27424 |
专题 | 气候变化 |
作者单位 | Wuhan Univ, GNSS Res Ctr, Wuhan, Peoples R China |
推荐引用方式 GB/T 7714 | Geng, Jianghui,Jiang, Peng,Liu, Jingnan. Integrating GPS with GLONASS for high-rate seismogeodesy[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(7). |
APA | Geng, Jianghui,Jiang, Peng,&Liu, Jingnan.(2017).Integrating GPS with GLONASS for high-rate seismogeodesy.GEOPHYSICAL RESEARCH LETTERS,44(7). |
MLA | Geng, Jianghui,et al."Integrating GPS with GLONASS for high-rate seismogeodesy".GEOPHYSICAL RESEARCH LETTERS 44.7(2017). |
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