InSAR技术现状与应用  

Present Status and Applications of Interferometric Synthetic Aperture Radar

作　　者：乔书波[1] 李金岭[2] 孙付平[1] 边少锋[3] 

机构地区：[1]信息工程大学测绘学院,郑州450052 [2]中国科学院上海天文台,上海200030 [3]海军工程大学,武汉430033

出　　处：《天文学进展》2003年第1期11-25,共15页Progress In Astronomy

基　　金：国家自然科学基金(40274001);国家杰出青年基金(40125013)

摘　　要：合成孔径雷达干涉测量(InSAR)是近期发展起来的一种新型空间对地观测技术。经相干处理,它把合成孔径雷达(SAR)产生的单视复数图像中的相位信息提取出来,给出目标点的三维信息。由于SAR具有全天候、全天时和对某些地物有一定穿透性等特点,使InSAR技术的潜在应用领域相当广泛,目前已经成为地学界相关研究的热点之一。介绍了SAR和InSAR的基本原理与发展概况,分析了InSAR测量模式的测高精度,着重讨论了InSAR技术的应用及其与天文地球动力学研究的相互促进关系。Interferometric Synthetic Aperture Radar (InSAR) is a newly developed space geodetic technique, which provides the three dimensional information of targets on the Earth by interferometric processing of the Single Look Complex Images (SLC-Image) of Synthetic Aperture Radar (SAR). Because of the outstanding characteristics in all-weather and 24-hour continuous surveying, as well as the ability to penetrate into some substances on the Earth, the latent application fields of InSAR are rather broad, which becomes one of the foci in Earth science study. Hereby the principles and general status of SAR and InSAR are briefly introduced. The limitations in the precision of the height determination of targets on the Earth by InSAR are analyzed. The applications of InSAR and the mutual relation for promotion between InSAR and astro-geodymanics study are highlighted discussed.

关 键 词：INSAR技术 合成孔径雷达干涉测量 空间对地观测技术 测高精度 天文地球动力学 天体测量学 

分 类 号：P129[天文地球—天体测量] P228[天文地球—天文学]