To enable space mission sets like on-orbit servicing and manufacturing, agents in close proximity maybe operating too close to yield resolved localization solutions to operators from ground sensors. This leads to a requirement on the systems need to maintain a catalog of their local neighborhood, however, this may impose a large burden on each agent by requiring updating and maintenance of this catalog at each node. To alleviate this burden, this paper considers the case of a single satellite agent (a chief) updating a single catalog. More specifically, we consider the case of numerous satellite deputy agents in a local neighborhood of a chief, the goal of the chief satellite is to maintain and update a catalog of all agents within this neighborhood through onboard measurements. We consider the agents having relative translational and attitude motion dynamics between the chief and deputy, with the chief centered at the origin of the frame. We provide an end-to-end solution of the this problem through providing both a supervisory control method coupled with a Bayesian Filter that propagates the belief state and provides the catalog solutions to the supervisor. The goal of the supervisory controller is to determine which agent to look at and at which times while adhering to constraints of the chief satellite. We provide a numerical validation to this problem with three agents.
翻译:为实现在轨服务与制造等空间任务,近距离运行的航天器可能过于靠近,导致地面传感器无法为操作员提供可解析的定位解。这要求系统具备维护其局部邻域编目的能力,然而,若每个节点均需更新和维护该编目,将给各航天器带来沉重负担。为减轻这一负担,本文研究单个主星航天器更新单一编目的情形。具体而言,考虑主星局部邻域中存在多个辅星航天器的情况,主星的目标是通过星载测量维护并更新该邻域内所有航天器的编目。我们分析了主星与辅星之间具有相对平动和姿态运动动力学特性的情形,其中主星位于坐标系原点。本文通过提供一种监督控制方法与贝叶斯滤波器的耦合方案,给出了该问题的端到端解决方案:贝叶斯滤波器负责传播置信状态,并将编目解传递给监督器。监督控制器的目标是在满足主星约束条件的前提下,确定观测哪个航天器及观测时间。我们通过三个航天器的数值仿真验证了该方法的有效性。