Time series InSAR surface deformation monitoring in extremely difficult area based on track refining control points selection

PAN Jianping; DENG Fujiang; XU Zhengxuan; XIANG Qiwen; TU Wenli; FU Zhanbao

doi:10.16031/j.cnki.issn.1003-8035.2021.05-12

2021 Vol. 32, No. 5

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Article navigation > The Chinese Journal of Geological Hazard and Control > 2021 > 32(5): 98-104

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PAN Jianping, DENG Fujiang, XU Zhengxuan, XIANG Qiwen, TU Wenli, FU Zhanbao. Time series InSAR surface deformation monitoring in extremely difficult area based on track refining control points selection[J]. The Chinese Journal of Geological Hazard and Control, 2021, 32(5): 98-104. doi: 10.16031/j.cnki.issn.1003-8035.2021.05-12

Citation:

PAN Jianping, DENG Fujiang, XU Zhengxuan, XIANG Qiwen, TU Wenli, FU Zhanbao. Time series InSAR surface deformation monitoring in extremely difficult area based on track refining control points selection[J]. The Chinese Journal of Geological Hazard and Control, 2021, 32(5): 98-104. doi: 10.16031/j.cnki.issn.1003-8035.2021.05-12

Time series InSAR surface deformation monitoring in extremely difficult area based on track refining control points selection

1.
School of Civil Engineering，Chongqing Jiaotong University, Chongqing　400074, China
2.
Geological Exploration Institute of China Railway Eryuan Engineering Group Co. Ltd., Chengdu, Sichuan　610031, China

Received Date: 18 September 2020

Revised Date: 26 November 2020

Publish Date: 25 October 2021

Abstract

Abstract

The extremely difficult area has the characteristics of extremely rugged terrain, complex geographical environment and sparse permanent scatterers. Therefore, an improved SBAS-InSAR technology is designed to monitor the surface deformation. In this paper, the candidate permanent scatterers are obtained from the coherence, amplitude dispersion index and deformation rate, and then the final permanent scatterers are selected by optical images, which are introduced into the SBAS-InSAR calculation process as orbit refining control points, and finally the surface deformation monitoring in the study area is completed. By comparing and analyzing the conventional PS-InSAR technology and SBAS-InSAR technology, the technology has good application value in extremely difficult areas.
- orbit refining control point /
- SBAS-InSAR /
- extremely difficult area /
- surface deformation monitoring

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References

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