内环路控制，对于自动驾驶仪操作，这是无关飞行航道的飞机俯仰姿态和坡度的基本控制。

INNER LOOP control, For autopilot operation this is the basis control of airplane pitch and roll attitude without regard to flight path.

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水平仪是飞机综合训练模拟器座舱仪表系统中用于显示飞机飞行姿态的仪表，主要完成俯仰、倾斜等指示功能。

Artificial horizon, an instrument of cockpit meter systems of the ACTE, is mainly used to indicate the flight attitude, such as pitching Angle and tilt Angle etc.

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然后，用本文给出的模型跟随理论设计俯仰一偏航通道自动驾驶仪，用线性二次型理论设计滚动通道自动驾驶仪。

Then the pitch-yaw channel autopilot is designed by the model following design approach given in this paper while the roll channel autopilot is designed by using linear quadratic theory.

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