A SBAS InSAR time series ground deformation extraction approach considering permanent scatterers

doi:10.13474/j.cnki.11-2246.2019.0044

测绘通报 ›› 2019, Vol. 0 ›› Issue (2): 58-62,70.doi: 10.13474/j.cnki.11-2246.2019.0044

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A SBAS InSAR time series ground deformation extraction approach considering permanent scatterers

WANG Shunyao, LU Xiaoping, LIU Xiaobang, FU Suining

Key Laboratory of NBSMG of Mine Spatial Information and Technology, Henan Polytechnic University, Jiaozuo 454003, China

Received:2018-09-03 Revised:2018-09-26 Online:2019-02-25 Published:2019-03-05

Abstract

Abstract:

A SBAS InSAR time series ground deformation extraction approach considering permanent scatterers is proposed in this paper. The stable permanent scatterers are extracted by setting the three thresholds of coherence, amplitude dispersion index and deformation rate, and are used as the ground control points in SBAS InSAR process to extract the ground deformation. A case study of Zhengzhou is conducted. The ground deformation rate and time series ground deformation of Zhengzhou from November 2016 to November 2017 are extracted. By comparing with PS InSAR, SBAS InSAR processing results and leveling measurements, and the reliability of this approach is well demonstrated.

Key words: permanent scatterers, SBAS InSAR, time series ground deformation, Zhengzhou

CLC Number:

P258

WANG Shunyao, LU Xiaoping, LIU Xiaobang, FU Suining. A SBAS InSAR time series ground deformation extraction approach considering permanent scatterers[J]. 测绘通报, 2019, 0(2): 58-62,70.

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A SBAS InSAR time series ground deformation extraction approach considering permanent scatterers

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