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  5. Virtual reference station(VRS)coordinate's pattern of QianXun ground-based augmentation system

Virtual reference station(VRS)coordinate's pattern of QianXun ground-based augmentation system

来源 :第九届中国卫星导航学术年会 | 被引量 : 0次 | 上传用户：zhijie882008
【摘 要】
：
Since May 2016,QianXun Spatial Intelligence Inc.has launched its Beidou ground-based augmentation system(QX-GBAS)which supports high-precision GNSS positioning service within the national coverage.The
【作 者】
：
Xinyu Chen Chenhao Ouyang Junbo Shi 
【机 构】
：
School of Geodesy and Geomatics,Wuhan University,Wuhan,Hubei
【出 处】
：
第九届中国卫星导航学术年会
【发表日期】
：
2018年10期
【关键词】
：
QX-GBAS network RTK VRS NMEA RTCM homeland security 
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　　Since May 2016,QianXun Spatial Intelligence Inc.has launched its Beidou ground-based augmentation system(QX-GBAS)which supports high-precision GNSS positioning service within the national coverage.The user first sends its approximate coordinates to QX-GBAS in the NMEA $GPGGA format and subsequently receives 3D Cartesian coordinates of virtual reference station(VRS)and corresponding GNSS code/phase observations encoded in the format of RTCM.
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