【摘要】 逆合成孔径雷达(Inverse Synthetic Aperture Radar,ISAR)可以实现对目标全天时、全天候、远距离和高分辨率的观测,在军事和民用领域中具有广泛的应用价值。首先,系统地总结了近年来在ISAR二维成像方面的研究进展。其次,从包络对齐与自聚焦两方面对平动补偿的研究现状进行了分析。再次,在分析传统ISAR成像方法的基础上,对4种超分辨成像方法进行归纳总结。然后,对大转角成像算法进行对比分析,给出不同算法的适用范围。同时,对多目标成像和微动目标成像的研究进展进行了综述和分析。最后,对未来ISAR成像的热点问题和发展趋势进行了展望。更多还原

【Abstract】 Because of its all-day,all weather,long range and high-resolution operation capabilities,inverse synthetic aperture radar(ISAR)has found wide applications in military and civil areas.This paper summarizes the advances in 2-D ISAR imaging in recent years.Then,it analyzes the translational motion compensation methods from envelope alignment and auto-focusing respectively.After that,four super-resolution imaging methods based on the analysis of traditional imaging techniques are reviewed.Additionally,the wideangle imaging methods and derives their application scope are compared.Furthermore,the advances in ISAR imaging of multiple/micro-motion targets are given.Finally,the potential hotspots problems and future works are discussed.更多还原