编队目标的仅方位跟踪

编队目标跟踪是多目标跟踪领域中的一个特殊问题.一般认为,在巡航状态下编队中的所有目标以同样的速度和航向匀速运动.这一事实可以用来帮助目标跟踪器改善跟踪效果.给出了在仅方位测量条件下编队目标跟踪的3种模型:分开模型、耦合模型和协作模型.分开模型实质上是多个单目标的同时跟踪,与单目标跟踪没有区别;耦合模型是将多个目标的待估状态耦合成一个综合的目标状态,各目标的测量信息也是合在一起使用;协作模型则是利用跟踪效果好的目标的速度和航向解算结果来帮助跟踪效果差的目标.对这3种方法进行的理论和仿真比较分析的结果表明,协作模型更有优势.

Tracking of formation target via bearing - only measurements

Formation target tracking is a special case of multi - target tracking. All the targets within a formation are generally considered as performing uniform motion with the same speed and heading, especially when they are in the state of cruising. This fact can be used to enhance tracking effectiveness. Under the condition that only bearing measurements are available, three models for formation target tracking, separated model, joint model and coordinated model, are presented and compared with each other. The separated tracking is essentially simultaneous tracking of multiple single targets, having little difference with single target tracking. The joint model is to use the measurement information of each target jointly. The coordinated model, which uses speed and heading estimations for the well observed target to improve the range estimation of the poorly observed targets, shows superiority in tracking performance to the other two. Simulations are conducted to suppert the theoretical results.