曲线合成孔径雷达(CLSAR)是当今雷达。感研究的新领域，近年来针对CLSAR的研究多集中于3维点目标特征提取和曲线孔径设计。该文对已有的CLSAR 3维点目标特征提取算法和孔径设计方法进行了分类，在介绍基本原理的基础上，比较了各种方法的优缺点，阐述了其中的关键问题。最后对CLSAR目标3维成像与特征提取、曲线孔径设计的发展前景进行了展望。%CurviLinear SAR (CLSAR) is increasingly attracting considerable interest in the field of radar remote sensing. Various methods of 3-D target feature extraction and aperture design have been proposed, and these methods are classified in this paper. The basic theories of these methods are systematically studied and compared, and their advantages and disadvantages are summarized. Moreover, the main 3-D target feature extraction and aperture methods are described. Finally, the future research fields of CLSAR are proposed.
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