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针对电传飞机横航向耦合程度高、飞行品质评估难的问题,文章在频域输出误差(OEM)法的基础上,提出了基于双输入双输出模型的低阶等效辨识的心方法。并以某型飞机实际算例结果与国际通用标准软件的计算结果对比,表明文章所提出的低阶等效系统辨识新方法正确、辨识精度高,可以应用于工程实践。
Aiming at the problem of the high degree of transverse coupling and the poor flight quality evaluation, the paper presents a low-order equivalent identification method based on the dual-input and double-output model based on the frequency domain output error (OEM) method. The comparison between the actual example results of a certain type of aircraft and those of international standard software shows that the new method of low - rank equivalent system identification proposed in this paper is correct and the identification accuracy is high. It can be applied to engineering practice.