摘要
InSAR具有能够实现全天时、全天候的对地观测等特点,现已成为空间对地观测技术的研究热点。本文论述了合成孔径雷达干涉测量(InSAR)技术生成DEM的原理、方法以及该过程存在的误差、减弱办法,最后对利用InSAR生成的西安地区DEM与1:5万比例尺的外部DEM进行了比较,并分析了其精度。
InSAR has already become a hot topic of the technique that can observe earth from space because of its day to night and all-weather imaging capability. This paper discusses the principle of DEM generation from synthetic aperture radar interferometer （InSAR） technique, processing, existed errors and the method for error mitigation. Finally, the DEM of Xi＇an area, which acquired from InSAR and the local DEM of 1 ： 50, 000 are compared and the accuracy of them analyzed
出处
《工程勘察》
CSCD
北大核心
2008年第6期47-49,共3页
Geotechnical Investigation & Surveying
基金
国家自然科学基金项目(40672173)
国家自然科学基金重大项目(40534021).
