天波超视距雷达目标跟踪面临多传播路径、低探测概率、低探测精度和低数据率的困难.本文在地理坐标系对运动目标建模而在雷达坐标系进行数据关联,将各传播模式的回波作为备选的竞争量测,运用动态规划的优化方式,在最大似然的意义下将VDA的回波与航迹的两维数据关联推广到回波、传播模式和航迹的三维数据关联,提出了多路径Viterbi(MVDA)数据关联算法.天波超视距雷达目标跟踪仿真表明:MVDA跟踪能力明显优于VDA和MPDA.
Target tracking of Over-the-Horizon-Radars (OTHR) inevitably faces the problem of multiple propagation modes, low detection probabilities,low measurement accuracy and low data-sampling rate. In this paper, a Multipath Viterbi Data Association (MVDA) algorithm is proposed, through modeling target movement in ground coordi- nate and implementing data association in radar coordinate so that Viterbi Data Association (VDA) is extended from association between measurement and track to association among measurement, propagation mode and track. The simulation results show that MVDA is superior to VDA and Multipath Probability Data Association (MPDA).