运动目标逆合成孔径雷达成象
INVERSE SYNTHETIC APERTURE RADAR IMAGING OF MOVING TARGETS
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摘要: 运动目标逆合成孔径雷达成象是根据旋转成象和运动补偿原理,利用宽带发射信号进行距离分辨,利用目标相对于雷达视线的旋转产生的多卜勒信息进行方位分辨。距离对准和运动补偿是逆合成孔径雷达成象的关键技术。本文概述了逆合成孔径原理,分析了距离对准和运动补偿问题,并给出了成象实验结果。
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关键词:
- 雷达成象; 逆合成孔径雷达; 高分辨雷达
Abstract: Imaging of moving targets by inverse synthetic aperture radar (1SAR) is based on range-Doppler processing and motion compensation. High resolution along the range is provided by broad bandwidth of the transmitted signal, while accross the range (azimuth) provided by an aperture induced by the motion of the target. Range alignment and motion compensation are the key techniques of ISAR. ISAR principles are summarized and experimental results are given. -
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