超地平覆盖飞行器组网星座优化设计

Constellation optimization design for hyper-horizon coverage vehicles

对超地平覆盖飞行器的概念及特性进行了简要的描述,以该类飞行器中的通用航空飞行器(CAV)为例,对该类型飞行器组网星座的优化设计进行了研究.首先基于单个CAV对地覆盖区域的分析,提出了一种几何意义更加清晰和简单的CAV再入对地覆盖区域的分析方法;其次通过提出等效的CAV星座覆盖性能指标-平均轨道响应时间,建立了CAV组网星座优化设计的数学模型;最后通过采用遗传算法对CAV组网星座进行了优化设计.通过分析优化设计的结果,说明了这种设计方案的有效性.

In the paper, the concept of hyper-horizon coverage vehicle was briefly described, and the optimization of the Common Aero Vehicle （CAV） constellation was investigated. First, based on the analysis of earth coverage of a single CAV, a new method was proposed to analyze the earth coverage of CAV, which was simple and geometrical meaningful. Then a math model of the optimization of a CAV constellation was established by introducing the concept of average visit time on orbit, which was an equivalent coverage performance of CAV constellation. At last, genetic algorithm was used to optimize the parameters of CAV constellation and the results validated the proposed method and mathematical model.