Visibility optimization of satellite constellations using a hybrid method
Visibility optimization of satellite constellations using a hybrid method
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使用混合方法优化卫星星座的可见性
DOI：
10.1016/j.actaastro.2019.01.025
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发表时间：
2019
影响因子：
3.5
通讯作者：
Xiaohui Wang
中科院分区：
文献类型：
--
作者：
Chao Han;Shengzhou Bai;Sihang Zhang;Xinwei Wang;Xiaohui Wang
针对卫星星座的能见度优化问题，提出了一种考虑多约束条件的高效混合优化方法。为了减少优化所需的时间，假定卫星星座具有特定的构型。优化包括两个步骤。第一步是在大范围内寻找最优解，第二步是在第一步优化结果的基础上得到精确的最优解。在分析覆盖性能函数的基础上，提出了一种线性自适应种群方法。与传统的优化方法相比，在保证优化精度的同时，有效地减少了计算时间。进行了数值模拟验证。它被证明是工程应用的一个实际选择。
For the visibility optimization problem of satellite constellations, this paper presents an efficient hybrid optimization method taking multiple constraints into account. To reduce the time needed for the optimization, the satellite constellation is assumed to have a specific configuration. The optimization includes two steps. The first step searches for optima over a large scale, while the second step is designed to obtain the accurate optimal solution based on the result of the first-step optimization. Based on the analysis of the coverage performance function, a linear adaptive population method is proposed for the first step. When compared with the traditional optimization method, calculation time can be efficiently reduced while ensuring an accurate optimization. Several numerical simulations are conducted for validation. It proves to be a practical choice for engineering applications.