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本文针对雷达杂波中单帧检测虚警概率高的问题,提出了基于速度模板匹配的扫描间积累杂波抑制方法。该方法首先根据场景中目标运动特征构造不同速度和加速度的运动模板,覆盖所有可能的目标运动轨迹。其次,利用不同的模板去匹配场景中的运动目标,实现目标的二元积累和检测判决,积累过程中根据多普勒信息对CFAR点迹进行辅助判决,进一步剔除雷达杂波虚警对扫描间积累性能的影响。最后通过实测雷达杂波数据验证所提方法的有效性。
In this paper, aiming at the problem of high probability of single-frame detection false alarm in radar clutter, a method of clutter-based accumulation clutter suppression based on velocity template matching is proposed. The method first constructs motion templates with different velocities and accelerations according to the target motion features in the scene and covers all possible target motion trajectories. Secondly, different templates are used to match the moving targets in the scene to realize the binary accumulation and detection of the target. During the accumulation process, the CFAR traces are aided based on the Doppler information and the false alarm of the radar clutter is further eliminated. The impact of cumulative performance. Finally, the effectiveness of the proposed method is verified by the measured radar clutter data.