针对高频地波雷达接收到的海杂波数据在落入Bragg峰区域时目标会被海杂波所遮盖的特点,通过对海杂波的空时耦合特性的分析,将空时自适应信号处理运用到超视距雷达中,提出抑制海杂波的同时检测被海杂波所遮盖的舰船的新方法。实测数据的处理结果证明了所提出利用空时自适应处理抑制海杂波的有效性和实用性。

Aims at the data of sea clutter received by high frequency(HF) ground wave radar will be masked by sea clutter when the ship target located the site of Bragg peak, the character of space-time coupling of sea clutter is analysed, and space-time adaptive processing (STAP) is applied to over the horizon radar, a method is proposed to eliminate mask effect caused by the spectrum of sea clutter. Simulation results in real data show that the algorithm for suppressing sea clutter is efficient and practical.