| 一种顾及永久散射体的SBAS InSAR时序地表沉降提取方法 |
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| 引用本文： | 王舜瑶,卢小平,刘晓帮,付睢宁. 一种顾及永久散射体的SBAS InSAR时序地表沉降提取方法[J]. 测绘通报, 2019, 0(2): 58-62,70. DOI: 10.13474/j.cnki.11-2246.2019.0044 |
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| 作者姓名： | 王舜瑶 卢小平 刘晓帮 付睢宁 |
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| 作者单位： | 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;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;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;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 |
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| 基金项目： | 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） |
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| 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。
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| 关 键 词： | 永久散射体 SBAS InSAR 时序地表沉降 郑州 |
| 收稿时间： | 2018-09-03 |
| 修稿时间： | 2018-09-26 |
A SBAS InSAR time series ground deformation extraction approach considering permanent scatterers |
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| WANG Shunyao,LU Xiaoping,LIU Xiaobang,FU Suining. A SBAS InSAR time series ground deformation extraction approach considering permanent scatterers[J]. Bulletin of Surveying and Mapping, 2019, 0(2): 58-62,70. DOI: 10.13474/j.cnki.11-2246.2019.0044 |
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| Authors: | WANG Shunyao LU Xiaoping LIU Xiaobang FU Suining |
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| Affiliation: | Key Laboratory of NBSMG of Mine Spatial Information and Technology, Henan Polytechnic University, Jiaozuo 454003, China |
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| 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. |
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| Keywords: | permanent scatterers SBAS InSAR time series ground deformation Zhengzhou |
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