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舰载雷达和海岸警戒雷达的目标检测和跟踪性能与海杂波密切相关。对X波段雷达实测海杂波进行了功率谱密度和相关分析,得到了一些有益的结果。与VV极化相比,HH极化的海尖峰特性更明显;与HH极化相比,VV极化海杂波的功率谱密度具有更窄的带宽,且衰减得更快。而HH和VV极化海杂波具有相似的相关性,但HH极化的相关系数要比VV极化的要小。得到的结果对雷达目标检测与识别具有一定的借鉴意义。
The target detection and tracking performance of carrier radar and coast guard radar are closely related to sea clutter. The power spectral density and correlation analysis of measured sea clutter of X-band radar have been done, and some beneficial results have been obtained. Compared with the VV polarization, the HH polarization has a more pronounced sea spike characteristic. Compared with the HH polarization, the VV polarization sea clutter has a narrower bandwidth and attenuates more rapidly. However, the correlation between HH and VV polarization sea clutter is similar, but the correlation coefficient of HH polarization is smaller than that of VV polarization. The results obtained have certain reference value for radar target detection and recognition.