Blended Control System Design for Missile Interceptors

• Main Authors: LIU, YU-CHIN, 劉宇晉
• Other Authors: LIN, CING-AN
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/82669758994797500016

碩士 === 國立交通大學 === 電控工程研究所 === 104 === This thesis proposes a blended controller consisting of the tail fins controller and lateral thruster controller for interceptor. Using the blended controller, the performance of interceptors will be better, compared with using tail fins controller. The tail fins controller is designed with a classical phase-lead and proportional-integral controller to achieve the requirements of transient and steady-state performance. Due to the limitations for degree of the tail and non-minimum phase dynamics, the speed of response may not meet the requirements of interception. So, some interceptors, such as PAC-3, combines lateral thrust actuators to increase the ability of interception. The lateral thrust controller is nonlinear and designed with sliding mode control theory. In simulation, the performance of interception using the tail fins controller and blended controller are compared when heading error exists and target has acceleration. The simulation results show that the blended controller has higher speed of response, and is more robust, which can reduce the miss distance effectively.