InSAR相位分解及其在生成DEM和研究地震形变场中的应用

英文篇名：Phase Decomposition of Interferometric Syntheic Aperture Radar and Relevant Application in DEM Formation and Research on Earthquake Deformation Field
中文刊名：西北地震学报
英文刊名：Northwestern Seismological Journal
作者：罗小军 ; 黄丁发 ; 刘国祥
英文作者：LUO Xiao-jun ; HUANG Ding-fa ; LIU Guo-xiang(Dept.of Surveying Eng. ; School of Civil Eng. ; Southwest Jiaotong University ; Chengdu 610031 ; China)
中文关键词：合成孔径雷达干涉 ; 差分干涉 ; 干涉相位分解 ; 数字高程模型 ; 地震
英文关键词：SAR interferometry ; Differential interferometry ; Decomposition of interferometric phase ; Digital elevation model ; Earthquake
出版日期：2006-09-30
机构：西南交通大学土木工程学院测量工程系,西南交通大学土木工程学院测量工程系,西南交通大学土木工程学院测量工程系四川成都610031,四川成都610031,四川成都610031
年：2006
期：03
出版单位：西北地震学报

摘要

InSAR是极具发展潜力的微波遥感新技术,可应用于数字高程模型的产生、制图和大范围微小地表形变的测量。考虑参考面、地形和地表形变等因素,本文从几何角度分析和讨论了In-SAR的相位分解,并给出了各相位分量的函数表达式,阐述了地表高程和形变信息提取的基本原理。最后以JERS和ENVISAT卫星数据为例,展示了合成孔径雷达干涉测量在生成数字高程模型和提取地震形变场中的应用及其数据处理过程。
InSAR(Interferometric Syntheic Aperture Radar) is a new microwave remote sensing technique with great developing potential.It can be applied to form DEM(Digital Elevation Model),mapping and monitoring minor terrestrial deformation in large area.In this paper,considering the reference surface,terrain and surface deformation,the interferometric phase decomposition in InSAR is analyzed and discussed from geometry point,and the relevant function expressions of specific phase components are presented.Then the basic principle of generating DEM and acquiring deformation is described.Finally,taking JERS and ENVISAT data as example,application and process of DEM formation and earthquake deformation field abstraction are displayed.

引文

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