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地震 ›› 2007, Vol. 27 ›› Issue (2): 64-71.

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CR、 PS干涉测量联合解算算法研究

程滔, 单新建   

  1. 中国地震局地质研究所地震动力学国家重点实验室, 北京 100029
  • 收稿日期:2006-12-12 修回日期:2007-01-24 出版日期:2007-04-30 发布日期:2021-10-29
  • 作者简介:程滔(1981- ), 男, 湖北随州人, 2004年在读硕士研究生, 主要从事微波遥感技术在地学中的定量研究、 合成孔径雷达干涉测量(InSAR)算法应用等研究。
  • 基金资助:
    国家自然科学基金(40574007, 40374013)项目资助; 欧空局ENVISAT A0-711项目支持

Research on algorithm of CRInSAR and PSInSAR combined calculation

CHENG Tao, SHAN Xin-jian   

  1. State Key Laboratory of Earthquake Dynamics, Institute of Geology, CEA, Beijing 100029, China
  • Received:2006-12-12 Revised:2007-01-24 Online:2007-04-30 Published:2021-10-29

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摘要： 由于时间去相干、 空间去相干和大气扰动等因素的影响, 传统InSAR技术在形变监测中存在着很大的局限性, 而当今新兴发展起来的CRInSAR、 PSInSAR技术则不受这些因素的限制, 从而大大提高了InSAR技术在形变监测尤其是在微量形变监测中的精度。 该文首先分析了传统InSAR技术所存在的局限性; 引入了CR、 PS高相干性散射体基本概念, 并介绍CRInSAR、 PSInSAR技术在当前国际上的研究进展情况; 通过PSInSAR算法的应用研究, 得出将CR与PS进行联合解算的必要性与优势, 并提出高相干性散射体联合解算算法。

关键词: 高相干性散射体, 角反射器, CRInSAR, PSInSAR, 联合解算

Abstract: Due to the effect of temporal decorrelation, spatial decorrelation and atmospheric disturbance, conventional InSAR technology is severely limited in deformation monitoring. However, some new technologies developed nowadays, such as CRInSAR and PSInSAR, are not restricted by these factors. They could greatly improve the precision of InSAR technology in deformation monitoring, especially in subtle deformation monitoring. This paper analyzes the limitations of conventional InSAR technology at first, and then introduces the basic conception of CR and PS and their research development. By applying the PSInSAR algorithm, we illustrate the necessity and advantage of combined calculation of CR and PS, and propose the algorithm.

Key words: High-Coherence-Scatterer, Corner-Reflector, CRInSAR, PSInSAR, Combined Calculation

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