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众所周知,距离多普勒成象雷达的距离分辨力和横向分辨力分别取决于发射信号的有效带宽和目标相对于雷达视线在相干处理区间内的转角,本文的研究工作旨在突破普通的FFT距离多普勒处理的限制,大大提高距离多普勒成象雷达的分辨能力,我们采用的方法是在进行付里叶重建之前用线性预测进行数据外推,用微波暗室试验数据进行转台成象的初步结果表明,这是一种改善距离多普勒成象雷达分辨能力的颇有前途的方法。
It is well-known that the range resolution and lateral resolution from the Doppler imaging radar depend on the effective bandwidth of the transmitted signal and the angle of the target relative to the radar line of sight in the coherent processing range respectively. The research work in this paper aims to break the common FFT distance The limitations of Doppler processing greatly improve the resolving power of Doppler imaging radars. The method we use is to extrapolate data by linear prediction before Fourier reconstruction. Rotameter imaging with anechoic chamber data Preliminary results show that this is a promising method to improve the resolution of Doppler imaging radar.