ABSTRACT

In this paper, the attitude cooperative output feedback control problem for multiple spacecrafts with limited communication resources is considered. First, a dynamic Event-Triggered Extended State Observer (ETESO) is developed for multiple spacecrafts to estimate the unmeasurable angular velocity, which can reduce the data-releasing rate. Second, a new distributed dynamic event-triggered communication scheme is proposed, which only adopts discrete information of neighbouring spacecrafts. Based on two independent dynamic event-triggered strategies, network load is reduced, and continuous communication between spacecrafts is avoided. The validity of the proposed controller is demonstrated by simulations.

摘要

本文研究了通信资源有限的多航天器姿态协同输出反馈控制问题。首先，开发了一种动态事件触发扩展状态观测器（ETESO），用于多航天器估计不可测角速度，从而降低数据释放率。其次，提出了一种新的分布式动态事件触发通信方案，该方案仅采用相邻航天器的离散信息。基于两个独立的动态事件触发策略，减少了网络负载，避免了航天器之间的持续通信。所提出的控制器的有效性通过仿真得到证明。