低分辨雷达成像定标算法性能分析

Performance analysis of the method of cross range scaling of low resolution radar

确定低分辨雷达目标横向成像的距离定标 (横向距离因子 ) ,是正确获取目标横向距离像和进行雷达目标识别的一个前提 .根据合成阵列以及干涉SAR(INSAR)的原理 ,利用两个水平方向放置的天线 ,通过对两个天线所成一维横向距离像进行比相 ,完成目标的横向定标 .通过理论及性能分析和仿真实验证明 ,该方法是正确和有效可行的 .

Cross range of low resolution radar is very important of obtaining the cross range image correctly and target classification and recognition. In this paper a new approach is proposed based on the principle of synthetic array and interferometric inverse synthetic aperture. It can be used to calculate the phase difference of some scatters between two instant cross range images by two antennas which are placed on one level. It can apply the proposed algorithm to the emulational data of two antennas. Theoretical analysis and processing results show that the proposed method is correct and effective.