基于精英占优裂变算法的空中目标跟踪

Air target tracking algorithm based on elite dominant fission

针对粒子群对空中目标跟踪的早衰现象,采用精英占优裂变算法。首先对大权值粒子进行裂变处理逐次增加数目,为了避免粒子陷入过度裂变,增设裂变控制因子;接着选取其中非劣解粒子作为"精英占优集",通过小生境技术分配粒子适应度值,裂变粒子群中的每个粒子分配一个标识码组,每个解根据相应的识别数组判断跟踪结果优劣;然后给出了算法评价标准和目标跟踪流程;最后给出了空中目标运动模型。实验仿真得出,跟踪结果在位置分量和速度分量上的滤波均方误差小,空间状态转向跟踪中精英占优裂变接近目标真实状态。

Aiming at the particle swarm to the air target tracking premature aging phenomenon,the elite dominant fission algorithm is proposed.The algorithm firstly makes fission processing to the particles with high weighted values.In order to avoid excessive fission,fission control factors are set up.Then select the non-inferior solution particles as ＂elite dominant set＂.Through the niching technology,particle fitness values are set.Each particle in fission swarm is assigned an identification mark,tracking results can be judged according to the relative solutions of each group.Evaluation standard is set up and target tracking process is given out.Lastly,air target moving model is obtained.The simulation shows that the result of the elite dominant fission is close to the true target state.