一种机动目标动态规划检测前跟踪算法  

A Dynamic Programming Track Before Detect Algorithm for Maneuvering Targets

作　　者：孟宁 史小斌[1] 高青松[1] 连豪[1] 任哲毅 孙藏安 MENG Ning;SHI Xiaobin;GAO Qingsong;LIAN Hao;REN Zheyi;SUN Cang an(Xi’an Electronic Engineering Research Institute,Xi’an 710100)

机构地区：[1]西安电子工程研究所

出　　处：《火控雷达技术》2019年第3期65-70,共6页Fire Control Radar Technology

摘　　要：针对传统动态规划检测前跟踪(Dynamic Programming Track-Before-Detect,DP-TBD)算法检测强机动目标时性能较差的问题,本文利用目标状态转移矩阵先验信息改进了传统DP-TBD算法,使得目标状态转移步长随状态的变化自适应调整,以此来避免在检测转弯运动目标时传统动态规划算法由于转移步长不变而造成的转移步长与目标速度失配的问题。仿真结果显示,在检测转弯运动目标时所提算法的检测性能和跟踪性能都比传统算法有所提高。通过对改进的DP-TBD、传统DP-TBD算法的仿真和比较,改进的DP-TBD算法跟踪强机动目标性能得到了显著提升,并具有工程应用价值。Accounting for poor performance of conventional dynamic programming track before detect(DP-TBD)algorithm when detecting strongly maneuvering targets,this paper improves the conventional DP-TBD algorithm by taking advantage of prior information of target state transition matrix.Thus,target state transition step is adaptively adjusted with the change of state in order to avoid mismatching between the transfer step size and target velocity in conventional dynamic programming algorithm as a result of fixed transition step when detecting turning target.The simulation results verify that the detecting and tracking performance for turning targets is improved.The comparison of simulation test between improved DP-TBD and conventional DP-TBD algorithm shows that the performance of improved DP-TBD algorithm is obviously increased for strongly maneuvering targets and it is worthy of engineering application.

关 键 词：检测前跟踪 动态规划 变步长转移 转弯机动目标 

分 类 号：TN957.51[电子电信—信号与信息处理]