全球导航卫星系统地面监测站优化设计方法  

Optimized Design Method of Monitoring Station of Global Navigation Satellite System

作　　者：冯来平[1,2,3] 张好[1] 任锴 

机构地区：[1]信息工程大学,河南郑州450001 [2]地理信息工程国家重点实验室,陕西西安710054 [3]西安测绘研究所,陕西西安710054 [4]测绘信息技术总站,陕西西安710054

出　　处：《测绘科学技术学报》2016年第3期221-225,共5页Journal of Geomatics Science and Technology

基　　金：国家自然科学基金项目(41204020);中国博士后科学基金项目(2013M540641)

摘　　要：地面监测站数量和分布直接影响全球卫星导航系统的星历精度,其优化布设是提高系统性能的前提,也是系统建设需要重点关注的环节。给出了评价监测站布设性能的综合指标,提出了一种用于监测站覆盖性能评估的模型,并通过对MEO卫星半长轴的长期变化和回归经度漂移的分析,验证了该模型用于评价全球导航系统监测站优化布设的合理性。最后,综合利用覆盖性能指标和精密定轨精度指标对全球监测站不同布局方案进行了分析比较,给出了监测站优化布设方案。The number and distribution of monitor stations have a direct influence on the ephemeris accuracy of global navigation satellite system（ GNSS）. Optimized layout of these stations is a prerequisite and guarantee for system performance, and also an important step in system construction. In this paper, comprehensive indices and a model are presented to evaluate the layout and coverage of monitor station network respectively. Besides, the secular change of the semi-major axes of MEO satellites and the regressive longitude drift are analyzed to validate the rationality of the model in evaluating the station layout. Finally, an optimized design of station layout is proposed on the basis of a comparison analysis of different layout schemes based on the coverage and the precise orbit determination accuracy index.

关 键 词：全球导航卫星系统 监测站布设 优化设计 评价指标 格网模型 

分 类 号：P228[天文地球—大地测量学与测量工程]