DETECTING DIGITAL ELEVATION MODEL(DEM) BY INSAR TECHNIQUE
SHAN Xin-jian1, LIU Hao2
1. Institue of Geology and Laboratory of Tectonocphysics China Seismological Bureau, Beijing 100029, China;
2. Institute of Remote Sensing Application, Chinese Academy of Sciences, Beijing 100101, China
Abstract：The algorithms and characteristics of INSAR (Interferometric Synthetic Aperture Radar) are introduced. Several phase unwrapping methods are summarized. For example, the DEM of study area in Mani of Tibet has been detected by INSAR technique.
[1] Li Fuk, Goldstein R M. Studies of multi-baseline Spaceborne interferometric Synthetic aperture radars［J］. IEEE Trans. Geosci. Remote Sensing, 1990,28(1): 88-96.[2] Pritt M. Phase unwrapping by means of multi-grid techniques for interferometric SAR［J］. IEEE, Trans. On Geoscience and Remote Sensing, 1996, 34(3): 728-738.[3] Takajo H, Takahashi T. Least-squares phase estimation from differences［J］. J. Opt. Society American, 1988, 5:416-425.[4] Vachon P W, Gray A L. ERS-1 SAR Repeat-Pass Interferometry: Temporal coherence and implications for Radarsat[C].Proceedings of the Seventeenth Canadian Symposium on Remote Sensing. (Ottawa: Canadian Center for Remote Sensing), 1995, 803-808.[5] 梁家玲.国家干涉合成孔径雷达在地形测图上的应用［J］.测绘科技通讯,1996,19(3):5-8.[6] 单新建,叶洪.干涉测量合成孔径雷达技术原理及其在测量地震形变场中的应用［J］.地震学报,1998,20(6):647-654.[7] 王超.利用航天飞机成像雷达干涉数据提取数字地面高程模型［J］.遥感学报,1997,1(1):46-49.
2001, Vol. 13 
