Dynamic Modeling and Design LQG/LTR Controller for the Flexible Satellite Structure

인공위성의 유연모드 구조물에 대한 동력학 모델링 및 LQG/LTR 제어기 설계

Some of Spacecraft's structures are flexible so that a certain expected disturbance can easily excite a low frequency vibration on these structures, having very low natural damping. Such vibration will degrade the performance of the system, which should to be kept in a specific shape or attitude against the undesired vibration, In this paper, LQG/LTR controller is developed using an additional dynamic model to increase the performance of the frequency responses at low frequency area,