详细分析了方位分辨力与方位回波谱的关系．通过对方位回波谱拼接处理来提高方位分辨力。仿真结果表明，方位回波谱拼接处理可提高分布式卫星SAR系统方位分辨力。

In this paper, the relation ship between the azimuth resolution and the azimuth echo spectrum is carefully analyzed,and an algorithm for improving azimuth resolution of the distributed space-borne SAR system by the azimuth echo spectrum joint processing is proposed. The result of simulation indicates that the azimuth echo spectrum joint processing can improve azimuth resolution.

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