改进的网格点法在区域覆盖问题中的应用  

Application of Improved Net-point Method to Solving Area Coverage Problem

作　　者：彭攀[1] 宋志明[2] 倪涛[1] Peng Pan;Song Zhiming;Ni Tao(Shanghai Institute of Satellite Engineering,Shanghai 201109;School of Computer,China University of Geosciences,Hubei Wuhan 430074,China)

机构地区：[1]上海卫星工程研究所,上海201109 [2]中国地质大学计算机学院,湖北武汉430074

出　　处：《工程地球物理学报》2019年第3期395-401,共7页Chinese Journal of Engineering Geophysics

基　　金：国家自然科学基金(编号:4571403);国家重点研发计划(编号:2016YFB0501001)

摘　　要：卫星星座区域覆盖问题是航天领域的一个基本问题。由于卫星星座构型多样,且区域形状的不规则,加之摄动等其他因素影响,传统的解决方法是网格点仿真法。但网格点仿真法在区域面积较大计算精度较高时效率低下。因此,对网格点仿真法进行了改进,根据卫星对地覆盖的几何特性,将一行网格点作为一个整体进行分析,由此设计出一种改进的网格点仿真法。实验表明,该算法性能优越,计算效率相比未改进的网格点仿真法有显著的提高。Area coverage problem of satellite constellation is a fundamental problem in the field of aerospace. Because of the diversity of the satellite constellation configuration and irregularity of the area shape, together with perturbation and other factors, the traditional method to solve the problem is grid-point method. But its efficiency is low when the area is very large and the calculation accuracy is high, so we improve the net-point simulation method. According to the geometric characteristics of the area coverage problem of satellite constellation, a row of net-point is treated as a whole to analyze, so an improved net-point simulation method is designed. The experiment shows that the algorithm has superior performance. Compared with the traditional net-point method, the computational efficiency improves remarkably.

关 键 词：卫星星座 区域目标 瞬时覆盖 累积覆盖 网格点法 

分 类 号：P627[天文地球—地质矿产勘探]