研究了红外制导导弹攻击目标过程中干扰释放时间对导弹飞行弹道及脫靶量的影响问题。依据稳态随机过程的时间遍历性原理,利用遍历转换技术开发了导引弹道时间统计代替相空间统计方法,可以对抗干扰过后稳态弹道的导引误差进行相关特征参数的提取。研究了靶场飞行试验参数提取与仿真试验相结合,对干扰时间和脱靶量的定量关系进行预测与评估的方法。计算表明,文中的方法结论可信,能达到减少实弹飞行试验数量的目的。

The relationship between miss distance of missile and interference duration occurred to the infrared guidance system was researched. Based on ergodic principle in stochastic process, the ergodic conversion method in which stochastic average was substituted with time average was studied. The steady state error of trajectory was extracted utilizing both test data and simulation for calculating the miss distance. It can reduce the test cost for evaluating the anti-interference probability of missile.