随机跳频合成宽带成像中的算法实现及分析

Research and Analysis on Algorithm of Random Hopped-Frequency in Synthetic Wideband Imaging

在随机跳频脉冲体制雷达接收端,对目标回波信号进行非均匀采样,得到非均匀频点,又雷达成像的常规处理方法是对这些非均匀频点进行排序、插值后,再做逆傅里叶变换就可以得到目标的高分辨距离像。针对不同的排序、插值方法,分析了算法计算量,最后提出几种实现方案并进行分析。

In the receiver of random hopped-frequency pulse radar system, it taken non-uniform rumpling to the target echo signal, and get the points of non-uniform sampling, which were sorted and interpolated, then it can be obtained high resolution image after doing the IFFT of the target echo signal. The paper analyzed the complexity of the algorithm for different sort and interpolation methods. Finally, several implementation were proposed and analyzed.