炮弹发射弹道命中目标误差校正估计仿真

摘要

弹道导弹是属于远程间瞄武器,射击时是有误差的,而且误差随射击距离显著增加,为了提升其精确性,需要进行炮弹发射弹道命中目标误差校正估计.但是采用当前方法进行目标误差校正估计时,难以抵御外界因素的干扰.为此,提出一种基于抑制校正源方位偏差的炮弹发射弹道命中目标误差校正估计方法.该方法先融合于一阶Taylor阶数给出目标误差校正源的阵列的输入,得到误差校正源的协方差矩阵,组建基于最小二乘的炮弹发射弹道命中目标误差校正优化估计模型,并利用该模型滤除其估计噪声,组建基于炮弹发射弹道命中目标误差校正估计目标函数,利用粒子群方法较强的寻优能力估计出炮弹发射弹道命中目标误差校正的位置,完成对炮弹发射弹道命中目标误差校正的估计.实验仿真证明,所提方法校正估计精度较高,可以为分析炮弹弹道误差特性,考察影响射击精度的主要因素提供有力的依据.%This article proposes an estimate method for target precision correction of missile launch trajectory based on suppressing azimuth deviation of correction source.Firstly,we provided array input of correction source of target error integrated with first order Taylor order and obtained covariance matrix.Then,we built an optimization estimate model of error correction and used the model to filter its estimate noise and build objective function based on the error correction.We also used better optimizing ability of particle swarm method to estimate position of correction.Finally,we completed the estimate for target precision correction.Results of experimental simulation demonstrate that the method has higher precision of estimate.It can provide powerful gist for principal factor of analysis on missile trajectory error and investigation on influencing firing accuracy.