基于高阶零陷滤波的空间多目标跟踪算法

Tracking algorithm for multiple spatial targets based on high order zero notch filter

针对传统的移动多目标跟踪算法计算量大、实时性差的问题,提出了一种新的基于阵列天线的空间多目标跟踪算法。算法利用阵元个数相对于信源数目的自由度,设计一个高阶的零陷空域滤波器组,对空间干扰源进行陷波,并对空间波束成形后的信号进行自适应跟踪,估计出多个移动目标的波达方向(direction of arrival,DOA)。仿真结果表明,此算法精度较高,计算复杂度较低,为空间移动多目标的实时跟踪提供了一种新方法。

To improve the heavy computational cost and the poor real-time performance due to the traditional algorithms of moving multiple target tracking, this paper presented a novel tracking algorithm for muhiple spatial targets based on array an- tenna. First, the algorithm designed a filter bank of high order zero notch to suppress the interference, utilizing the degree of freedom of the array elements to the signal resoiarces. Then, tracked the moving muhiple targets adaptively to estimate their DOAs （direction of arrival） after spatial beamforming. The simulation results illustrate the high accuracy and the lower com- plexity of the algorithm. This study provided a new method for real-time tracking of the moving multiple targets in space.