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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 method of system identification is introduced to ensure that the three-channel model of missile missile body can be obtained more accurately when there is “sudden jump” in the original aerodynamic parameter table. The feasibility of this method and the steps of its implementation are discussed. Finally, the statistical characteristics of simulation block diagram, simulation result and identification error are given. The results show that the modeling accuracy can meet the engineering design requirements.