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Space-borne SAR Image Simulation and Its Application in Geo-rectification

You Hongjian Ding Chibiao Wu Yirong(Institute of Electronics,Chinese Academy of Sciences,Beijing 100080)   

  • Published:2006-02-25
  • Supported by:
    测绘遥感信息工程国家重点实验室开放基金资助项目

Abstract: The image position of space-borne SAR is calculated based on range-doppler principle and then the scatter coefficientof terrain is simulated according to experientialformula.The(density)of simulated image points in mountain is not symmetricalowing to the difference between the interval of DEM and the resolution of SAR image,and side-look character of SAR.Four DEM corner points are used to interpolate the simulated SAR image.The space-borne SAR is rectified(after) thatthe simulated image is matched with the real SAR image.The method is demonstrated by simulating RADARSAT image and rectifying the real SAR image.