多输入模糊控制器及其在飞行控制中的应用

针对输入量之间具有导数关系的三输入模糊控制器进行了理论分析。通过输入空间分区和非线性反模糊算法的引入，推导出了三输入模糊控制器的有关算法，并且总结出它与传统ＰＩＤ控制器之间的等价性及等价条件。飞机纵向运动仿真计算结果表明：三输入模糊控制器与二输入模糊控制器相比较，当初始状态变化较大时，对高度和速度的控制更有效。

A New Multi-Input Fuzzy Logic Controller and Its Application to Flight Control

Theoretical studies for the fuzzy controller, with three inputs (error,rate change of error and acceleration change of error),is made in this paper. By means of the introduction of the algorithm of both input fuzzification and output defuzzification,such fuzzy controller with three inputs is proved to be equivalent to a variable structure proportional integral differential(PID) controller.Compared with a two input fuzzy controller,results of longitudinal flight control shown that both flight altitude and speed can be more efficiently controlled and with robustness to different a priori values by means of the new algorithms.