D-In SAR技术在地震同震形变研究中的应用

InSAR技术全天候、全天时、大面积、高精度、高可靠性的观测能力已经越来越开始受到世人的瞩目。目前的InSAR技术已不仅仅是测绘研究领域获取高精度数字地形高程模型 (DEM )的一种解决途径。随着合成孔径雷达差分干涉测量技术 (D InSAR)的不断发展 ,该技术已经开始比较广泛地应用于地形测绘、地震同震形变、地面沉降、滑坡、火山爆发、冰川运动等研究领域的探索和实践之中 ,并且开始在地表变形与运动研究中发挥出相当重要的作用。本文介绍的重点是D InSAR技术的基本原理、研究现状及其在地震同震形变中的应用和前景

The co-seismic deformation reserch using D-InSAR observation

Differential Interferometric Synthetic Aperture Radar becomesa popular observation on the deformation of crustal surface because of the minimum constraints on time-of-day and atmospheric condition and because of the unique responses of terrain and cultural targets to radar frequencies. Although InSAR is a very important method to obtain the DEM of the earth,the precise crustd eformation of great areas can be observed by using the D-InSAR observation.Aswhich is used in the reserch on co-seismic deformation,D-InSAR will be used more extensively on other new scopes,such as terrain mapping,land subsidence,landslide,volcano eruption,and glacier motion.As the asic theory is depicted first,how D-InSAR to be used in the research on coseismic deformation,and its prospect are the important parts in this paper.