Method of target tracking with Doppler blind zone constraint  

作　　者：Wei Han Ziyue Tang Zhenbo Zhu 

机构地区：[1]Department of Air/Space based Early-warning Equipment,Air Force Early Warning Academy

出　　处：《Journal of Systems Engineering and Electronics》2013年第6期889-898,共10页系统工程与电子技术（英文版）

基　　金：supported by the Academy Innovation Fund Project (2013QNCX0101)

摘　　要：Doppler blind zone （DBZ） has a bad influence on the airborne early warning radar, although it has good detection performance for low altitude targets with pulse Doppler （PD） technology. In target tracking, the blind zone can cause target tracking breakage easily. In order to solve this problem, a parallel particle filter （PF） algorithm based on multi-hypothesis motion models （MHMMs） is proposed. The algorithm produces multiple possible target motion models according to the DBZ constraint. Particles are updated with the constraint in each motion model. Once the first measurement from the target which reappears from DBZ falls into the particle cloud formed by any model, the measurementtrack association succeeds and track breakage is avoided. The simulation results show that on the condition of different DBZ ranges, a high association ratio can be got for targets with different maneuverability levels, which accordingly improves the tracking quality.Doppler blind zone （DBZ） has a bad influence on the airborne early warning radar, although it has good detection performance for low altitude targets with pulse Doppler （PD） technology. In target tracking, the blind zone can cause target tracking breakage easily. In order to solve this problem, a parallel particle filter （PF） algorithm based on multi-hypothesis motion models （MHMMs） is proposed. The algorithm produces multiple possible target motion models according to the DBZ constraint. Particles are updated with the constraint in each motion model. Once the first measurement from the target which reappears from DBZ falls into the particle cloud formed by any model, the measurementtrack association succeeds and track breakage is avoided. The simulation results show that on the condition of different DBZ ranges, a high association ratio can be got for targets with different maneuverability levels, which accordingly improves the tracking quality.

关 键 词：Doppler blind zone （DBZ） track breakage particle filter （PF） multi-hypothesis motion model （MHMM） measurementtrack association 

分 类 号：TN957.52[电子电信—信号与信息处理]