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本文提出了一种多输入 -多输出系统动态载荷的优化估计方法。该方法可以使估计的总体均方误差最小。首先 ,采用逆系统分析方法建立误差估计方程 ;其次 ,利用非因果维纳滤波理论导出了动态载荷的优化估计器。数字仿真结果表明 ,该方法在抑制测量噪声对估计精度的影响方面具有良好的效果。与传统方法估计结果的对比分析表明 ,所提出的方法更为有效和实用。
In this paper, an optimal estimation method for dynamic loads of multiple-input-multiple-output system is proposed. This method can minimize the estimated overall mean square error. First, the inverse system analysis method is used to establish the error estimation equation. Secondly, an optimal estimator of dynamic load is derived by using non-causal Wiener filter theory. The numerical simulation results show that this method has a good effect in suppressing the influence of measurement noise on the estimation accuracy. The comparative analysis with the traditional method shows that the proposed method is more effective and practical.