雷达的帧间相关处理方法研究

Research on Radar Inter-frame Correlation Processing Method

本文利用在较长时间里海面目标运动的有序性以及海尖峰的无序性,研究了两种基于帧间运动补偿的帧间相关处理方法。该方法是先对海面目标的运动路径进行基于距离-方位二维搜索的包络对齐,然后对多帧数据进行帧间视频积累或二进制积累。通过雷达实测数据分析,该方法可以有效地抑制海杂波和海尖峰的同时,改善了对海面慢速弱目标的检测性能。

In this paper, two methods of inter-frame (scan-to-scan) correlation processing based on compensation for movement between frames are proposed. The methods take advantage of orderliness of sea target movement and disorder of sea spikes with a long duration. In these methods, envelope alignment of the moving path of a sea surface target based on range-azimuth search is performed at first. Then inter-frame video integration or binary integration on data of several frames is performed. The measured data of radar show that these methods not only have a better effect of suppressing sea clutters and sea spikes, but also can improve radar performance of detecting slow targets on sea surface with weak echoes.