基于EA-FPHT的无源协同定位检测前跟踪方法

AEA-FPHT Based Passive Coherent Location Tracking Before Detect Method

针对无源协同定位系统低可观测目标的跟踪耗时及虚假航迹问题,提出一种基于能量积累的快速极坐标霍夫变换无源协同定位检测前跟踪方法。建立了多目标无源协同定位系统的数学模型。提出了快速极坐标多目标无源协同定位跟踪方法。利用目标运动速度先验信息和雷达回波帧序号信息,组合相邻两帧满足目标运动特性的雷达数据,并在第二门限中加入目标能量积累信息构成双门限。仿真分析算法性能,并得出结论:所提方法能够有效解决无源协同定位系统低可观测目标的跟踪耗时及虚假航迹问题。

Aiming at the problem of tracking time and false track of low observable target in passive coherent location system, a energy accumulation fast polar Hough transform track before detect algorithm is proposed. First, the mathematical model for target detection and tracking is established. Second, a fast polar Hough transform is proposed for multitarget track. Using the prior information of target motion velocity and the number radar echo frame information, combining the radar data of two adjacent frames which satisfying the motion characteristics of target. And adding the target energy accumulation information in the second threshold which constitutes a double threshold. Finally, simulation results show the effectiveness of the proposed algorithm.