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曲线合成孔径雷达(CLSAR)是当今雷达遥感研究的新领域,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。
Curve Synthetic Aperture Radar (CLSAR) is a new field of radar remote sensing research. In recent years, the research on CLSAR mostly focuses on the feature extraction of 3-D point target and the design of curve aperture. In this paper, the existing CLSAR 3-D target feature extraction algorithm and aperture design method are classified. Based on the introduction of the basic principles, the advantages and disadvantages of each method are compared and the key issues are expounded. Finally, the prospect of 3D imaging and feature extraction of CLSAR target and the design of curve aperture are prospected.