系统辨识在导弹建模中的应用

引入系统辨识的方法 ,确保当原始气动参数表内存在“突跳点”时 ,仍可以较为精确地得到导弹弹体三通道线性化模型。论述了这种方法的可行性、以及具体实现的步骤 ,最后给出仿真框图、仿真结果以及辨识误差的统计特性。结果表明 ,建模精度可以满足工程设计要求。

The application of system identification in the modeling of missile

The way of system identification is introduced in this paper, which assures that the missile three channel linear model can be got accurately as sharp points exist in original aerodynamic parameter list. The feasibility and realization procedure is discussed in the paper. Finally, the simulation block diagram and the statistic characteristic of identification error are presented in the paper,the result indicates that the modeling precision can achieve the requirement of engineering design.