Autopilot design for dual-spin projectile based on PI and feedback linearization control
Autopilot design for dual-spin projectile based on PI and feedback linearization control
复制标题
基于PI和反馈线性化控制的双自旋弹丸自动驾驶仪设计
DOI：
--
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Byung
中科院分区：
文献类型：
--
作者：
HanJin Lee;Chang;Byung
本文介绍了一种新型的装有航向修正引信的弹丸自动驾驶仪。与导弹系统相反，俯仰和偏航运动在弹丸模型中是强耦合的。此外，在飞行过程中存在高度非线性、快速变化的动力学。为了克服这些困难，本研究提出了一种基于PI（比例积分）控制和非线性FBLC（反馈线性化控制）方法的串级加速度控制结构设计；内环控制器设计用于通过应用FBLC和速率控制器（即内环）来跟踪所需的身体速率，速率控制器（即内环）由外环PI控制器增强，最终提供所需的加速度。本文采用非线性仿真方法对俯仰和偏航加速度控制器的性能进行了研究。
In this paper, a new autopilot for a projectile equipped with a course correction fuze is presented. In contrast to the missile systems, the pitch and yaw motions are strongly coupled in the projectile model. In addition, there exists highly nonlinear, rapidly changing dynamics during the flight. To overcome these difficulties, this study suggests a cascade structure design for acceleration controls based on PI (proportional-integral) control and nonlinear FBLC (feedback linearization control) methodology; the inner loop controller is designed to track the desired body rates by applying FBLC and the rate controllers (i.e., inner loop) which are augmented by the outer loop PI controller to finally provide the desired accelerations. In this paper, the performances of the pitch and yaw acceleration controller are examined using a nonlinear simulation.