高频地波超视距雷达海杂波信号分析

Analyses of Sea Clutters in HF Ground Wave Over-the-Horizon Radar

高频地波超视距雷达在现代战争和民用事业中发挥着越来越重要的作用。首先介绍了高频地波超视距雷达一阶、二阶海杂波的产生机理 ,然后解释了舰载条件下海杂波展宽的现象及原因 ,最后对实际的海浪回波进行处理 ,分别给出了岸基和舰载条件下海杂波的频谱图 ,从而对理论的分析进行了验证。

HF ground wave over-the-horizon radar is playing a more and more important role in modern wars and civil projects. Firstly, this paper introduces the mechanisms of first-order and second-order sea clutters received by a HF ground wave over-the-horizon radar, then explains the phenomena and reasons of broadening of sea clutters in the condition of using a ship-mounted radar. Lastly, real sea echoes are processed, and the frequency spectrum of sea clutters received by a land-based and a ship-mounted radar are given repectively, so that the analyses in theory are proved.