Polar format algorithm (PFA) is a typical image formation algorithm used in spotlight SAR.

极坐标格式算法(PFA)是一种典型的聚束sar成像算法。

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Then, the origin and the effect on imaging of time domain polar format algorithm residual video phase error are analyzed.

然后分析了时域极坐标算法存在残余视频相位误差的原因及其对成像结果的影响。

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Then three spotlight mode SAR imaging algorithms are discussed and compared, including polar format (PF) algorithm, chirp scaling (CS) algorithm and range migration (rm) algorithm.

然后重点对三种聚束式SAR成像算法进行了讨论与比较，包括极坐标格式(PF)算法、线性调频测绘(CS)算法和距离走动(RM)算法。

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