基于OLS算法的导弹气动系数模型优选  

Missile Aerodynamic Coefficient Model Selection Method Using OLS Algorithm

作　　者：郑鹍鹏[1] 李海峰[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《指挥控制与仿真》2013年第4期75-76,80,共3页Command Control & Simulation

摘　　要：针对导弹控制系统中的气动力建模问题,将正交最小二乘法用于模型结构优选,并提出一种候选模型集预处理方法,用以剔除模型中的相关项在此基础上建立了导弹气动力模型优选方法。将其应用于一种导弹滚转力矩系数模型,进行了仿真计算,取得了与风洞试验数据一致的计算结果。结果显示该方法在导弹气动力建模中有效可行,为构建最优化的模型结构提供指导。Aerodynamic modeling is of great importance for design of missile control system. In this paper, a missile aerodynamic model selection method is constructed, which involves an Orthogonal Least Square algorithm using in model structure selection, and a precondition method for assembly of candidate model terms to eliminate the correlated terms. Then the meth- od is applied in rolling moment coefficient modeling of a certain missile, and the modeling result is consistent with the wind tunnel test data.

关 键 词：非线性系统建模 正交最小二乘算法 气动力建模 模型结构优选 

分 类 号：TJ765.3[兵器科学与技术—武器系统与运用工程] E927[军事—军事装备学]