首页 | 本学科首页   官方微博 | 高级检索  
     

GEO/IGSO混合区域导航星座的设计与优化算法
引用本文:徐哲宇,杜兰,刘志豪. GEO/IGSO混合区域导航星座的设计与优化算法[J]. 中国空间科学技术, 2021, 41(2): 19-30. DOI: 10.16708/j.cnki.1000-758X.2021.0018
作者姓名:徐哲宇  杜兰  刘志豪
作者单位:信息工程大学地理空间信息学院,郑州450001
摘    要:区域导航星座能够以较低成本和较短时间获得目标区域导航能力,且地球同步轨道是构建非极区区域导航星座的重要轨道类型.提出一种基于GEO(地球静止轨道)和IGSO(倾斜地球同步轨道)的区域导航星座设计方法.基于星下点轨迹特性构造对称星座设计参数和优化参数集,并考虑地球扁率长期摄动影响,计算星座轨道参数.以导航服务区的统计GD...

关 键 词:区域导航星座  GEO/IGSO卫星  差分进化算法  星座设计优化

Design and optimization algorithm of GEO/IGSO hybrid regional navigation constellation
XU Zheyu,DU Lan,LIU Zhihao. Design and optimization algorithm of GEO/IGSO hybrid regional navigation constellation[J]. Chinese Space Science and Technology, 2021, 41(2): 19-30. DOI: 10.16708/j.cnki.1000-758X.2021.0018
Authors:XU Zheyu  DU Lan  LIU Zhihao
Affiliation:Institute of Surveying and Mapping,Information Engineering University, Zhengzhou 450001, China
Abstract:The regional navigation constellation can provide the navigation ability for the users of the targeted area with the balanced cost and efficiency, and the geosynchronous orbits are some of the important orbit types to construct non-polar regional navigation constellation. A configuration method was proposed for regional navigation constellation based on GEOs (geosynchronous orbits) and IGSOs (inclined geosynchronous orbits). Firstly, a set of SSP (sub-satellite point) involved design parameters were presented and depicted especially for the symmetric constellation. And the long-term perturbations due to the earth's oblateness were induced to recalculate the mean orbital elements of the GEOs and IGSOs and propagate their orbits. Then the statistical GDOP (geometric dilution precision) of the grid points of the specific navigation service area was used as the objective function for the DE (differential evolution) optimization algorithm. Finally, taking the Indian constellation of IRNSS as an example, the presented design and optimization algorithm was verified by the constellation simulation, and various configurations and orbit types of IRNSS constellation were discussed in detail. The results show that for India and surrounding region, the 7-satellite constellation can best consider the navigation performance and construction cost; the elliptical orbit is unable to take into account the navigation performance of the northern and southern hemispheres, which is difficult to expand to global navigation constellation. This method can improve the global optimization efficiency of GEO / IGSO hybrid regional navigation constellation, and provide the number of satellitesand configuration design quickly for the subsequent asymmetric constellation.
Keywords:regional navigation constellation   GEO/ IGSO satellite   differential evolution algorithm   constellation design optimization  
本文献已被 CNKI 等数据库收录!
点击此处可从《中国空间科学技术》浏览原始摘要信息
点击此处可从《中国空间科学技术》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号