基于零频抑制与杂波图的地面慢速目标检测

强地物杂波严重影响雷达系统对慢速目标的探测性能,对此设计了基于零频抑制与杂波图的地面慢速目标检测方法。采用Kalmus滤波器提高零频抑制能力,并针对慢速目标检测的实际需求,对其滤波性能和设计方法进行了分析。采用空间邻域插值方式完成目标区域的杂波背景积累,解决慢速目标检测不连续问题。最后对改进的慢速目标检测方法进行了仿真分析。实验结果表明,该方法对地面慢速目标的检测概率优于其他方法。

Detection of slow target based on zero-frequency restrain and cluster map

The ground cluster strongly degrades the detection performance of radar for slow targets, so the based on zero- frequency restrain and cluster map is proposed. The zero-frequency restrain is improved by Kalmus filter. The Kalmus filter is analyzed in performance, and designed for the detection requirement of slow ground target. Space neighbor insert is introduced in the accumulation of cluster background, and the discontinuity of cluster map detection is avoided. Then, the simulation of the improved detection method of slow ground target is given. The results show that, the detection probability of slow targets is higher with this method.