组合GNSS系统可见卫星分析  

Analysis the Visible Satellites of Combined GNSS System

作　　者：胡自全[1,2] 何秀凤[2] 

机构地区：[1]西安市地下铁道有限责任公司,陕西西安710018 [2]河海大学卫星及空间信息应用研究所,江苏南京210098

出　　处：《全球定位系统》2015年第3期1-5,共5页Gnss World of China

摘　　要：为解决高山峡谷地区及城市建筑群区域,GPS用户接收到的卫星个数少无法满足定位的最低要求的问题,提出组合GNSS导航定位的方法。利用GPS、GLONASS及GALILEO系统的卫星轨道参数模拟,计算不同卫星高度角下全球范围内单GNSS系统及组合GNSS系统的可见卫星数。研究表明:组合GNSS系统增加了可见卫星数,突破了极端条件下卫星高度角对导航定位的限制,扩展了卫星定位的范围。In order to solve the problem of the alpine and gorge region and urban builtup area,the number of satellite receiver to the GPS user cannot meet the minimum requirements for the positioning of the small problems,propose the way of combining of GNSS navigation and positioning.Simulation using GPS,GLONASS and GALILEO satellite orbit parameters,the number of visible satellites are calculated under different satellite elevation angle in the global scope of single GNSS system and GNSS system.Research shows that the combination of GNSS system increase the number of visible satellites,broke through the limitation of the extreme conditions of satellite elevation angle of navigation and positioning,expanding the scope of satellite positioning.

关 键 词：GNSS 组合系统 卫星 可见 

分 类 号：P228.4[天文地球—大地测量学与测量工程]