Firstly, the original nonlinear model of the aircraft longitudinal motion is linearized to a three-order decoupling system via the input-output feedback technique.

首先，对飞机纵向运动的非线性模型进行输入输出反馈线性化，将其等效为一个三阶线性系统，并同时实现了解耦。

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Firstly, the original nonlinear model of the aircraft longitudinal motion is linearized to a three-order decoupling system via the input-output feedback technique.

首先，对飞机纵向运动的非线性模型进行输入输出反馈线性化，将其等效为一个三阶线性系统，并同时实现了解耦。

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