【摘要】 由于采用最大似然算法进行气动参数辨识通常存在着局部极值问题 ,为了寻求非线性全局最优解 ,提高估计精度 ,介绍了以混沌优化算法作为搜索工具 ,与最大似然算法相结合 ,求解非凸优化问题全局最优解的方法。算例表明 ,该方法是有效可行的 ,并且估计精度也较高更多还原

【Abstract】 The local extremal problem existed in some maximum likelihood algorithms is introduced in this paper.For obtaining a globe nonlinear optimal solution and improving the estimation accuracy,the choas optimal algorithm is used as a searching tool and combined with maximum likelihood.It is an ideal method to solve nonconvex optimization problems.The examples illustrate that the present method is viable and high precision.更多还原