空地微型导弹制导精度仿真分析

Guide Precision Analysis and Numerical Simulation of Air-to-Surface Miniature Missile

以某非旋转空地微型导弹为研究对象,分析了影响其制导精度的随机误差因素,通过Matlab仿真试验给出了各误差因素的变化范围和模型处理方法。采用Simulink快速仿真功能(RSIM)分别对固定目标和运动目标进行了六自由度弹道蒙特卡洛打靶模拟。对仿真结果统计,得到了该型导弹的系统误差、随机误差及脱靶量。在此基础上,运用如《GJB6289—2008地地弹道式导弹命中精度评定方法》中包含系统误差的定义计算了导弹的CEP。计算结果验证了导弹仿真模型的准确性,可为该导弹的研发或作战训练提供理论指导。

A certain non-rotational Air-to-Surface miniature missile was taken as the investigation object,and its random error factors which affect the guide precision were analyzed,and variable range and handling method in the model of the error factors were presented through the Matlab simulation test. The 6-DOF Monte-Carlo target practice simulation of shooting fixed target and moving target were conducted with Simulink-RSIM. Through statistics of the simulation results,the missile＇s system error,random error and miss distance were obtained. And then,CEP of the missile was calculated by using the definition which contains the missile＇s system error such as the GJB6289—2008 Ground-to-Ground Ballistic Missile Firing Precision Assessment Method. The simulation results validate the accuracy of the 6-DOF model,which provide theoretical guidance for the missile development and combat training.