通信卫星星座优化设计综述

A Survey of Constellation Optimization Design for Satellite Communications

通信卫星星座优化设计是构建通信星座系统的关键环节。对通信卫星星座设计中的优化模型和优化算法进行了综述和展望。首先,建立了通信卫星星座设计的一般优化模型;然后,从覆盖性能、星间链路和系统成本三个方面对优化模型中优化变量、目标函数和约束条件的构建进行了综述;之后,介绍了卫星星座设计中常用的三大类多目标优化算法,归纳总结了4种主流算法的主要特征,并比较分析了它们应用于卫星星座设计的优缺点;最后,指出了现有通信卫星星座优化设计中存在的问题及发展趋势。

Constellation optimization design for satellite communications is one of the key steps to construct a communication system. The methods of constellation design are divided into optimization model and evolutionary algorithms,and the prospect is brought forward. Firstly,a general optimization model for the constellation design of satellite communication is proposed and the methods of setting up the optimization variables,objective functions and constraint conditions are introduced from three aspects of coverage performance, inter-satellite links and cost of system. Then three kinds of multi-objective algorithms in satellite constellation design are stated,and characteristics of four algorithms are summarized. Meanwhile,their merits and drawbacks are compared in satellite constellation design. Finally,problems in constellation design are pointed out and future research directions are forecasted.