天波超视距雷达的多路径融合多目标跟踪算法  

Multipath fusion multi-target tracking algorithm for over-the-horizon radar

作　　者：唐续[1,2] 吴骐[2] 李明晏[2] 黄大羽 TANG Xu WU Qi LI Mingyan HUANG Dayu(Science and Technology on Avionics Integration Laboratory , Shanghai 200233, China School o f Electronic Engineering ,University of Elecironic Science and Technology of China , Chengdu 611731 , China)

机构地区：[1]航空电子系统综合技术重点实验室,上海200233 [2]电子科技大学电子工程学院,四川成都611731

出　　处：《系统工程与电子技术》2017年第7期1493-1499,共7页Systems Engineering and Electronics

基　　金：航空电子系统综合技术重点实验室和航空基金联合(20155580007)资助课题

摘　　要：针对天波超视距雷达(over-the-horizon radar,OTHR)的信号多路径传播特点,提出一种融合多路径信息的多目标跟踪算法。该算法利用概率多假设跟踪(probabilistic multi-hypothesis tracker,PMHT)算法中量测与目标关联的"软"决策模型优势,并对多路径观测函数显式建模,推导了多路径量测融合处理公式。仿真实验结果表明,相比于标准PMHT算法,所提出算法实现了在低检测概率、高杂波的OTHR环境下对多个目标的更有效跟踪,获得更高的目标状态估计精度和更低的失跟率。Considering the multipath signal propagation in over-the-horizon radar （OTHR） , a mul ti-target tracking algorithm based on the multipath information fusion is proposed. It exploits the merit of the ＂soft＂ as-sociation between measurements and targets in probabilistic multi-hypothesis tracker （PMHT） algorithm. By explicitly modeling the multipath measurement function, the resulting fusion formulation is derived. The simu-lation results show that, in the complex scenario of OTHR with low detection probability and dense clutter, the proposed multipath-aided PMHT algorithm notably outperforms the standard PMHT in the mult-target states estimation and the rate of track loss.

关 键 词：天波超视距雷达 多路径 信息融合 概率多假设跟踪 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TN911.7[自动化与计算机技术—计算机科学与技术]