摘要
本文对卫星导航广域差分信息播发技术进行研究,提出一种基于移动多媒体卫星广播的北斗高精度广域差分数据播发系统。系统利用卫星广播技术,实现北斗广域差分数据的全国覆盖和接收,可大范围提升北斗导航系统定位精度。系统依托静止轨道卫星“亚洲之星”开展数据播发测试,测试结果表明系统具备服务能力,可作为我国北斗星基增强服务的补充,具有广阔的应用前景。
In this paper,the technology for broadcasting wide-area GNSS differential data is studied,and a new high-precision BDS wide-area differential data broadcasting system is proposed.The system uses the satellite broadcasting technology to achieve nation-wide coverage and reception of BDS differential data,which can improve the positioning accuracy of BDS in national wide range.Broadcasting test via GEO"Asia Star"satellite was carried out,and the test results show that the system has service capability as a supplement to BDS SBAS service in China and vast application prospects.
作者
赵琳莉
王锦晨
Zhao Linli;Wang Jinchen(Academy of Broadcasting Planning,NRTA,Beijing 100866,China;North Information Control Group Cooperation,Jiangsu 211153,China)
出处
《广播与电视技术》
2022年第7期143-148,共6页
Radio & TV Broadcast Engineering
关键词
北斗导航系统
星基增强系统
卫星广播
广域差分数据
BDS
Satellite based augmentation system
Satellite broadcasting
Wide area differential data
