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InSAR
技术现状与应用
乔书波1 李金岭2 孙付平1
边少锋3
(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)
摘 要
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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。
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Present
Status and Applications of Interferometric Synthetic Aperture Radar
Qiao
Shubo1
Li Jinling2
Sun Fuping1 Bian Shaofeng3
(1. Surveying and Mapping College of Information Engineering University,
Zhengzhou 450052)
(2. Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai
200030)
(3.
Navy Information Engineering University, Wuhan 430033)
Abstract
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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.
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