论文部分内容阅读
针对绕月运行轨道建立月球阴影区域与地球阴影区域的数学模型,给出了卫星是否处于阴影区域的判据;利用黄金分割法搜索出了阴影区域的边界值。将禁忌搜索算法嵌入遗传算法中并结合具体案例,搜索出了阴影时长最短的最优目标轨道。所给出的绕月轨道阴影区域模型简单且能够满足工程精度需求,可用于星上自主预报算法;所给出的嵌入式遗传算法能有效避免陷入局部最优并快速收敛。
The mathematical model of lunar shadow area and earth shadow area is set up for orbit around the moon, and the criterion of whether the satellite is in the shadow area is given. The boundary value of the shadow area is found by golden section method. The tabu search algorithm is embedded in genetic algorithm and combined with the specific case, the optimal target trajectory with the shortest shading time is searched out. The given lunar orbit shadow region model is simple and can meet the needs of engineering accuracy and can be used for autonomous prediction of satellite. The proposed embedded genetic algorithm can effectively avoid falling into local optimum and converge rapidly.