论文部分内容阅读
高频地波超视距雷达在舰载条件下探测舰船目标面临着诸多挑战 .其中之一是雷达平台运动导致的一阶Bragg谱线的展宽将淹没多普勒频率落入此展宽区的目标 .本文首先利用合成孔径原理分析了展宽谱的性能 .在此基础上 ,论证了通过空间滤波对消海杂波而留存目标回波的实际可行性 .最后给出的实验结果进一步证明了本文所提方法的有效性 .
High-frequency ground wave over-the-horizon radar is facing many challenges when it comes to detecting ship targets under carrier-based conditions. One of them is that the broadening of the first order Bragg spectrum caused by radar platform motion will submerge the Doppler frequency into this broadening range The purpose of this thesis is to analyze the performance of broadened spectrum by using the principle of synthetic aperture.Finally, the feasibility of preserving the target echoes by eliminating the sea clutter by spatial filtering is demonstrated.Finally, the experimental results further prove that this article The effectiveness of the proposed method.