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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。
Moving target Inverse synthetic aperture radar imaging is based on the principle of rotation imaging and motion compensation, using wideband transmit signals for distance resolution, using the Doppler information produced by the rotation of the target with respect to the radar line of sight for azimuth resolution. Distance alignment and motion compensation are the key technologies of inverse synthetic aperture radar imaging. In this paper, the principle of inverse synthetic aperture is summarized, the problem of distance alignment and motion compensation is analyzed, and the imaging experiment results are given.