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现在人们对大型卫星星座在诸如全球通信等方面的应用产生了越来越浓的兴趣。不管是为了在大气阻力摄动效应下保持覆盖模式还是在星座中某一卫星失效的情况下重构星座结构,这些都需要进行轨道控制。由于常规的控制策略显得代价太大,因此考虑解决星座轨道控制的自主方法很有必要。本文提出了一种基于“人造位函数法”的分布式控制技术,格拉斯哥大学曾用该方法来解决航天器的控制问题。开发出的算法允许对轨道诸参数进行直接控制,而且可以利用固有的轨道力学特性来调整轨道参数。这些技术已在一个简单的环状卫星星座的应用中得到验证。文中也讨论了有关这种基本方法的具体实现和未来的改进。
There is now a growing interest in the use of large satellite constellations in areas such as global communications. Whether for maintaining the coverage pattern under atmospheric resistance perturbation effects or reconstructing the constellation structure in the event of a satellite failure in the constellation, these require orbital controls. Since conventional control strategies appear to be too costly, it is necessary to consider an autonomous approach to constellation orbit control. This paper presents a distributed control technique based on the “artificial bit function method”, which was used by the University of Glasgow to solve the spacecraft control problem. The developed algorithm allows direct control of the orbital parameters and allows the orbital parameters to be adjusted using the inherent orbital mechanics. These techniques have been validated in a simple ring satellite constellation. The article also discusses the concrete realization of this basic method and future improvements.