摘要
研究了非线性连续—离散系统极大似然估计方法的实现及其在飞行器气动参数辨识中的应用问题。首先给出了递推计算灵敏度算法的构成、初始摄动的选择和初值的计算,继而导出了不需矩阵求逆运算的递推算式。最后结合飞行器的气动参数估计来说明算法的具体实现。
Abstract The implementation of maximum likelihood estimation method to the nonlinear continuous ?discrete systems and application to aerodynamic parameter identification for vehicle are studied. First, the construction of recursive computing sensitivities algorithm, the selection of the initial perturbation and the calculation of the initial value are discussed, and then the recursive formulas without matrix inversion are given. Finally, two examples of aerodynamic parameter estimation are illustrated which show the implementation of algorithm in detail.
出处
《飞行力学》
CSCD
北大核心
1996年第3期1-8,共8页
Flight Dynamics
基金
国家自然科学基金资助项目
关键词
极大似然估计
气动参数辨识
飞行器
飞行试验
Nonlinear continuous - discrete systems Maximum likelihood estimation Sensitivities Aerodynarnic parameter identification
