Analysis of InSAR time-series deformation monitoring accuracy of domestic satellite

被引：0

作者：

Xu, Bing ^{[1
]}

Zhu, Yan ^{[1
]}

Li, Zhiwei ^{[1
]}

Yi, Huiwei ^{[1
]}

Hu, Miaowen ^{[1
]}

Chen, Qi ^{[2
,3
]}

Han, Kun ^{[1
]}

Du, Xun ^{[1
]}

机构：

[1] School of Geoscience and Info-Physics, Central South University, Changsha

[2] China Centre for Resources Satellite Data and Application, Beijing

[3] China Siwei Surveying and Mapping Technology Co.Ltd., Beijing

来源：

Cehui Xuebao/Acta Geodaetica et Cartographica Sinica | 2024年 / 53卷 / 10期

基金：

中国国家自然科学基金;

关键词：

accuracy analysis; CSU-; InSAR; Lutan-1; time-series InSAR;

D O I：

10.11947/j.AGCS.2024.20230572

中图分类号：

学科分类号：

摘要：

The successful launch of the Lutan-1 satellite group (LT-1) has achieved the development of China's L-band interfer-ometric SAR satellite from scratch. For obstacle avoidance, a small part of the spatial baselines of LT-1 satellite was long, but the length of the baseline has been controlled to within 400 meters after the orbit adjustment. In order to verify the availability and accuracy of LT-1 satellite data, this article takes the Datong mining area in Shanxi Province as an example and obtains 25 LT-1 strip pattern image data from December 23, 2022 to May 20, 2023, respectively, for SBAS-InSAR and PS-InSAR data processing. By comparing and analyzing the deformation monitoring results of time-series InSAR and GPS stations in the light of sight, the standard deviations of the two are 5. 7 mm/a (SBAS-InSAR) and 3. 4 mm/a (PS-InSAR) , respectively. The root mean square error of the time series is less than 5 mm, indicating high consistency. The research has shown that domestically produced LT-1 satellites have high-precision deformation monitoring capabilities, providing reliable data assurance for domestic terrain surveying and deformation monitoring. © 2024 SinoMaps Press. All rights reserved.

引用

页码：1930 / 1941

页数：11

共 35 条

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