雷达微弱目标检测的有效方法

Effective algorithm for radar dim moving target detection

针对低信噪比条件下微弱运动目标检测问题,提出了一种基于检测前跟踪的动态规划改进算法,根据雷达图像中包含的来袭目标运动参数信息,预测来袭目标的运动轨迹,并沿着预测运动轨迹积累能量。仿真结果表明,该算法能够较准确地估计目标航迹,计算量较小,在强杂波背景下能较好地检测出低信噪比运动目标,对于威胁预警区域较大的来袭目标能更好进行实时探测。

For detecting dim moving targets under the background of low SNR, a new dynamic programming algorithm based on tracebefore-detection is presented. This new algorithm, to target moving to radar direction, accumulates target energy along target moving track according to the information of target moving parameters. Simulation results show that this algorithm, with high computational efficiency, can effectively estimate trajectories of dim moving targets.