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本文应用POWELL方法,对某飞航式导弹航向稳定回路参数进行了优化设计。探讨了系统具有非线性及滞后特性时,参数的初始值、初始扰动、计算时间等因素对优化结果的影响。对控制工程中常用的几种最优准则,分别求得最优参数,比较了这些参数对系统动态品质的影响。并构造了一种目标函数,得到了令人满意的优化结果。
In this paper, the POWELL method is used to optimize the parameters of course stability of a flight-borne missile. When the system has nonlinear and hysteresis characteristics, the influence of initial parameters, initial disturbance, calculation time and other factors on the optimization results is discussed. The optimal parameters are obtained respectively for the several optimization criteria commonly used in control engineering. The influence of these parameters on the dynamic quality of the system is compared. An objective function is constructed and a satisfactory optimization result is obtained.