采用遗传算法进行区域覆盖卫星星座优化设计

Optimization of regional coverage satellite constellations by genetic algorithm

区域覆盖星座的研究具有很大的现实意义。本文建立了一种比较通用的区域覆盖星座模型 ,将遗传算法用于该模型 ,建立了一整套区域覆盖星座的优化设计办法 ,算例表明了该算法的有效性。

The research on regional coverage satellite constellations has much meaning. A general model of satellite constellations for regional coverage was established. The Genetic Algorithm was used to give the optimization results of regional coverage constellations. A practical method was given. In this method, the binary string was used to code the parameters of the constellation. There are many objective functions to choose, one of which, the coverage percentage, was used in this paper. The statistic of the objective function was got from the grid points located in the region of interest. The analytic methods including different kinds of perturbation can be used to propagate the orbit. For general use, the consideration of J2 effect is enough. The simulation results demonstrate the effect of the method.