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《Journal of Yangtze River Scientific Research Institute》 2004-03
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Key technologies on resolving DEM generation with space-borne SAR Interferometry

PAN Bin~1,SHU Ning~1,YANG Jie~2,ZHAN Zong-qian~1 (1.School of Remote Sensing Information Engineering,Wuhan University,Wuhan 430079,China; mote Sensing, Wuhan University,Wuhan430079,China)  
Two key technologies on resolving DEM generation with space-borne SAR interferometry are described, taking ERS- 1/2 data for example. Firstly, the procedure of InSAR DEM generation is introduced, including two key problems needed to be solved,i.e., highly precise registration of complex SAR images and phase unwrapping. Then, an image registration method, by which sub-image precision can reach matching that of whole image, is represented, and the advantages and disadvatages of several phase unwrapping methods are discussed. Lastly, a DEM generation example of Born area in German with the software developed by the authors of this paper is demonstrated.
【Fund】: 863《对地观测数据综合处理原型系统》项目资助(2003AA135010)
【CateGory Index】: P237
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