CAJ | 학술논문

分布式卫星的姿态控制主要困难是姿态控制模块需要通过卫星间的无线控制模块(ISL)来实现.这种脆弱的ISL导致大量的数据丢失,字节错误和较长的时间延时,从而使传统的线性实时控制算法无法胜任.本文提出了一种带有观测器的可约束模型预测控制,并提供了与传统PD控制的仿真实验比较.仿真结果验证了该算法在分布式卫星姿态控制上的应用上的优越性.
분포식위성적자태공제주요곤난시자태공제모괴수요통과위성간적무선공제모괴(ISL)래실현.저충취약적ISL도치대량적수거주실,자절착오화교장적시간연시,종이사전통적선성실시공제산법무법성임.본문제출료일충대유관측기적가약속모형예측공제,병제공료여전통PD공제적방진실험비교.방진결과험증료해산법재분포식위성자태공제상적응용상적우월성.
For virtual satellites,the main challenge for the attitude determination and control module is to maintain the performance with weak wireless inter-satellite links (ISL).Such weak ISL leads to large data loss,high bit error rate,and long transmission delay during the real-time control process,which is beyond the competence of traditional linear control algorithms.In this paper,a constrained model predictive controller with learning observer was developed.The simulation results provided a performance comparison between MPC and PD controller and showed the advantage of the MPC controller for this situation.