分布式卫星系统自主运行体系结构模型研究

在分析现有分布式卫星系统(DSS)体系结构不足的基础之上,针对DSS自主运行特征,提出了一种适应动态、复杂不确定环境的DSS两级系统层次的混合体系结构模型.同时根据多星协作和星内自治的需求,给出一种较为通用的面向自主协作的卫星控制结构Agent模型,并讨论了该结构中各Agent模块的组成、功能及相互联系. 

Research on Architecture Model With Autonomous Coordination for Distributed Satellite Systems

In a broad sense, Distributed Satellites System (DSS) refers to a multi-satellites system, which distributes over different special orbits and submits to given constraints. Generally, it is fleets of autonomous spacecraft. Some of the many advantages of using DSS include greater performance, lower cost, and improved fault tolerance, reconfigurability and upgradeability. The vision of what can be achieved from space is no longer bound by what an individual satellite can accomplish. According to characteristics of DSS, it is necessary and feasible to adopt Multiple Agent System (MAS) theory to instruct the research on autonomous control of DSS. This paper discussed the qualitative analysis and comparison of commonly-used autonomous control architectures of DSS. Based on it, a hybrid systematic hierarchical structure model with two levels is put forward to fulfill autonomous coordination demands of DSS under the dynamic and complicated uncertain circumstances. Furthmore, the study on satellite autonomy at home and abroad is still in the early stage, and there are not any guidelines or frameworks to follow till now. A novel agent model on satellite control architecture is outlined, and the components, functions and relationships of agents in the architecture are analyzed. It is designed for multi-satellites coordination and satellite self-government, thus it has generality to a certain extent.