地基基站导航卫星信号兼容性探讨  

Discussion on satellite navigation signal compatibility of ground base station

作　　者：熊辉 沈建军 孙鹏 廖威 文军福 文述生 XIONG Hui;SHEN Jianjun;SUN Peng;LIAO Wei;WEN Junfu;WEN Shusheng(Yangtze River Communications Administration,Ministry of Transport,Wuhan 430000,China;Guangzhou South Surveying and Mapping Technology Co.Ltd.,Guangzhou 510000,China)

机构地区：[1]交通运输部长江通信管理局,武汉430000 [2]广州南方测绘科技股份有限公司,广州510000

出　　处：《导航定位学报》2020年第6期53-56,共4页Journal of Navigation and Positioning

摘　　要：为了准确地预测干扰对码跟踪的影响,提出1种兼容多种卫星导航系统信号的方法:对不同信号体制的兼容性进行对比;并基于北斗卫星导航系统(BDS)接收机,设计1种能够兼容多种频率和多种系统的卫星导航接收机;最后对BDS、全球定位系统(GPS)及伽利略卫星导航系统(Galileo)间进行码跟踪频谱敏感系数(CT-SSC)仿真。结果表明:使用新型BDS信号,可以提高控制系统的兼容性和可靠性;该接收机能够实现不同卫星信号的自由重组和切换,定位精度更良好,定位效率更高。In order to accurately predict the influence of interference on code tracking,the paper proposed a method combining multiple signals of different navigation satellite systems:the compatibility of different signal systems was compared,and a satellite navigation receiver compatible with multiple frequencies and systems was designed based on the BeiDou satellite navigation System(BDS)receiver;finally the simulation of Code Tracking Spectrum Sensitivity Coefficient(CT-SSC)among BDS,Global Positioning System(GPS)and Galileo satellite navigation system(Galileo)was carried out.Result showed that:the compatibility and reliability of the control system could be improved by using the proposed BDS signal;and the receiver could realize free recombination and switching of different satellite signals with better positioning accuracy and higher positioning efficiency.

关 键 词：卫星导航系统 卫星信号 信号体制 兼容性对比 定位精度 

分 类 号：P228[天文地球—大地测量学与测量工程]