目标微动蕴含着对合成孔径雷达（SAR ）图像解译极为有利的特征和信息，同时也造成SAR成像模糊等不利影响。近年来，SAR目标微动影响分析、微动目标检测、估计、成像等技术正成为当前遥感领域新兴的研究方向。本文将上述技术统称为SAR微动目标指示（SAR/MMTI ），对SAR/MMTI概念、科学问题、试验情况、理论进展、应用前景等方面做了比较深入的介绍和分析，最后对SAR目标微动研究的发展趋势进行了预测。%Target micro-motion conveys vital information which is favorable for understanding synthetic aperture radar (SAR) images .However ,image defocusing also ensues .Therefore ,techniques on micro-motion effect analysis ,micro-motion target detection and imaging are gaining more and more attentions in the remote sensing field .These techniques are generally named SAR/micro-motion target indication (SAR/MMTI ) .In this paper ,topics on SAR/MMTI are introduced including its concept ,key diffi-culties ,existing experiments ,processing approaches ,and its application promise .Some directions of future work on SAR micro-mo-tion are predicted at last .
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