The main content of this dissertation can be concluded as following : a ) on the base on discussion of sar high resolution and theoretical imaging model , sar signal processing is analyzed in detail . range immigration and estimation of doppler parameters are also involved during discussing space - borne sar imaging and processing . a good result is obtained in the course of processing seasat and x - sar raw data 在讨论了sar二维高分辨力机理和sar成像理论模型的基础上，针对sar成像信号处理，分析成像处理的基本原理，和星载sar成像处理中的距离迁移校正和多普勒参数估计等关键问题，编制了处理程序，对seasat ， x - sar的原始数据进行了试验，得到满意的效果。
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