延迟对拦截弹制导精度的影响

Effect of system delay on guidance accuracy of interceptor

针对拦截弹在末制导段拦截战术弹道导弹(TBM),本文分析了拦截弹制导控制系统中存在的导引头信息处理延迟、制导控制指令延迟和执行机构响应延迟对制导精度的影响。在拦截弹弹道修正和姿态控制规律的基础上,考虑拦截弹与TBM的初始位置偏差、导引头测量误差和弹道控制执行机构推力偏差,完成了不同制导控制延迟条件下拦截弹拦截TBM制导精度的六自由度Monte-Carlo仿真计算。根据对仿真结果的分析,最后给出了拦截弹拦截TBM目标的制导精度与制导控制延迟之间的约束关系。

The effect of main delay in guidance & control system of interceptor on guidance accuracy is investigated during terminal phase of intercepting a tactical ballistic missile (TBM).On the basis of divert and attitude control law of interceptor,main error factors including initial position bias of interceptor and TBM,seeker detecting error and divert system bias of interceptor were considered.Finally,the guidance accuracy to intercept a TBM was simulated on the condition of different guidance & control system delay.According to the simulation result,the relation is given between guidance accuracy and main delay in guidance & control system of interceptor.