Ship-borne dual-antenna InSAR slope deformation monitoring

被引：0
|
作者：
Shen G. [1 ]
Pan B. [1 ]
Liu L. [2 ]
机构：
[1] School of Remote Sensing and Information Engineering, Wuhan University, Wuhan
[2] Guangzhou Urban Planning & Design Survey Research Institute, Guangzhou
来源：
Cehui Xuebao/Acta Geodaetica et Cartographica Sinica | 2023年 / 52卷 / 03期
关键词：
D-InSAR; deformation monitoring; dual-antenna InSAR; InSAR; shipborne InSAR; triangle corner reflector;
D O I：
10.11947/j.AGCS.2023.20210541
中图分类号：
学科分类号：
摘要：
Differential synthetic aperture radar interferometry (D-InSAR) is a remote sensing technology that uses SAR data in different phases to obtain deformation information. It has been widely used in large-scale surface deformation monitoring. Various InSAR sensor-carrying platforms are used in different spatial scale research, including space-borne, airborne, vehicle-mounted and ground-based InSAR, etc. In small-scale river slope monitoring, under the condition that the opposite bank can be observed, fixed ground-based InSAR monitoring is mainly used at present. However, the ground-based InSAR deployment cycle is long and the cost is high. This study proposes a mobile shipborne InSAR deformation monitoring technology. And according to the ship-borne InSAR imaging geometry, a shipborne upward-looking dual-antenna InSAR deformation monitoring model is designed. This model enables the close-up-looking ship-borne InSAR system to meet the same conditions of δϑ=ϑ-ϑ0=0 under the condition that H≫h and R≫h are not reached. We conducted experiments in the Lancang River Basin in Yunnan Province, using corner reflectors (triangle corner reflector, TCR) to simulate the deformation and evaluate the accuracy of the deformation results. The experimental results show that the ship-borne InSAR technology proposed in this paper can obtain the Line of Sight (LOS) deformation error within 2 cm. Shipborne InSAR technology is suitable for slope deformation monitoring in river basins, and is of great significance for disaster monitoring and early warning of water conservancy facilities. © 2023 SinoMaps Press. All rights reserved.
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页码：443 / 453
页数：10
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