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在雷达信号处理中,最重要的是消除杂波噪声,检出目标,提高识别率。为此正在研究杂波的统计特性。作为抑制杂波的方法,已知依赖于杂波振幅强度分布的恒虚警率(以下简称CFAR)回路比较有效。这里提出了应用不依赖杂波振幅强度分布的非参量方法抑制海杂波,实验证明,在不规定杂波振幅强度分布时非参量方法有效。从距离方向杂波信号的随机性着眼,对距离方向进行非参量恒虚警率处理,可以抑制雷达杂波,提高对杂波中舰船的检测精度
In radar signal processing, the most important thing is to eliminate clutter noise, detect the target and improve the recognition rate. To this end, the statistical characteristics of clutter are being studied. As a method of suppressing clutter, it is known that a constant false alarm rate (hereinafter referred to as CFAR) loop depending on the distribution of the amplitude and the amplitude of the clutter is effective. In this paper, we propose a non-parametric method to suppress sea clutter, which is independent of the amplitude distribution of clutter. Experiments show that the non-parametric method is effective when the amplitude and amplitude distribution of the clutter is not specified. From the randomness of the clutter signal in the direction of the direction, the non-parametric constant false alarm rate processing on the distance direction can suppress the radar clutter and improve the detection accuracy of the ship in the clutter