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中文摘要：
SAR图像提高分辨率的几种典型方法有谱估计、正则化、基追踪及偏微分方程方法．讨论这几种方法之间的联系，为其综合应用提供参考．首先，揭示不同方法在先验信息利用、建模及参数估计等方面的异同．其次，给出不同方法使用的边界条件和工程应用过程中的优选方法．最后，给出了几种综合模型的构造思路，计算结果验证了综合方法的优势．
英文摘要：
There are several typical methods for SAR image superresolution, such as spectrum estimation, regularization, basis pursuit and partial differential equation methods. The relationship of these methods was discussed to provide reference for their synthetic application. First, the sameness and difference of different methods in prior utilizing, problem modeling, and parameters estimating were discussed. Second, the application bound of each method and the selection of methods in engineering application was given. Last, several thoughts for synthetic model were given. The simulation results confirm the merit of synthetic method.
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