嵌入式辅助下的飞行器优化控制模型仿真

Simulation of Optimization Control Model of Aircraft Assisted by Embedded

飞行器的大角度、多方向的控制过程是一个非线性、强耦合的时变过程。小型嵌入式系统下的控制模型中,需要克服高阶数、干扰强烈等问题。传统的控制方法处理这种问题时,建模过程运算量大、建模过于复杂,存在飞行轨迹控制效果较差等缺陷。提出一种基于自适应控制的嵌入式辅助下的飞行器控制方法。对嵌入式辅助下的飞行器的飞行动力学特性进行分析,利用非线性系统的反馈线性方法建立飞行器的飞行动力学模型,推导出飞行器的非线性控制模型,建立飞行器的姿态控制器,并对模型的误差进行修正,使得飞行控制器具有较强的自适应性和鲁棒性。实验结果表明,改进算法能够对嵌入式辅助下的飞行器进行精确飞行控制,效果令人满意。

The wide- angle and polydirectional control of aircraft is a nonlinear, strong coupling and time -var- ying process. In the control model under the small embedded system, it needs to overcome the problems of high or- der, strong interference and so on. In the paper, an aircraft control method under embedded assistant was proposed based on adaptive control. The characteristics of flight dynamics of aircraft under embedded assistant were analyzed. Feedback linearization method of nonlinear system was applied to establish the flight dynamics model of the aircraft and deduce the nonlinear control model of aircraft. The attitude controller of aircraft was established and the error of model was corrected, which enables the flight controller to possess strong adaptability and robustness. The experi- mental results show that the improved algorithm can perform the accurate flight control of aircraft under embedded as- sistant, and the effect is satisfactory.