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

• 学术研究 • 上一篇    下一篇

一种顾及永久散射体的SBAS InSAR时序地表沉降提取方法

王舜瑶, 卢小平, 刘晓帮, 付睢宁   

  1. 河南理工大学矿山空间信息技术国家测绘地理信息局重点实验室, 河南 焦作 454003
  • 收稿日期:2018-09-03 修回日期:2018-09-26 出版日期:2019-02-25 发布日期:2019-03-05
  • 通讯作者: 卢小平。E-mail:hpuluxp@163.com E-mail:hpuluxp@163.com
  • 作者简介:王舜瑶(1994-),男,硕士,主要从事合成孔径雷达沉降监测的应用研究。E-mail:244940012@qq.com
  • 基金资助:

    2016年国家重点研发计划(2016YFC0803103);河南省高校创新团队支持计划(14IRTSTHN026)

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

WANG Shunyao, LU Xiaoping, LIU Xiaobang, FU Suining   

  1. 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

摘要:

提出了一种顾及永久散射体的SBAS InSAR时序地表形变提取方法。通过设置相干性、振幅离差指数、形变速率3阈值提取稳定的永久散射体,将其作为地面控制点引入SBAS InSAR处理流程,完成对地表形变的提取,并以郑州地区为例进行试验。获取了郑州市区2016年11月至2017年11月的地表沉降速率和时序地表沉降量,通过与PS InSAR、SBAS InSAR处理结果及水准测量进行对比,说明了该方法的可靠性。

关键词: 永久散射体, SBAS InSAR, 时序地表沉降, 郑州

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

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