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星载和机载远距离目标的高分辨成像一直是科研人员不断追求的目标,为了突破远距离光学系统孔径衍射受限的问题,国内外先后发展了多种激光成像雷达技术。着重介绍了基于“点发射、面照射、点接收”工作模式来实现远距离目标高分辨成像的四种激光成像雷达基本原理,给出了这几种类型激光成像雷达的国内外实验和工程化进展程度,并进行了相应的比较。
High-resolution imaging of long-haul and airborne targets has always been the goal pursued by researchers. In order to overcome the limitation of aperture diffraction in long-distance optical systems, many kinds of laser imaging radar technologies have been developed at home and abroad. The basic principle of four laser imaging radars based on the “point emission, surface irradiation, point reception” mode of operation to realize long-range target high resolution imaging is emphatically introduced. The domestic and international experiments of these types of laser imaging radar are given The progress of engineering, and the corresponding comparison.