| 北斗三号全球导航卫星系统服务性能评估:定位导航授时、星基增强、精密单点定位、短报文通信与国际搜救 |
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| 引用本文： | 蔡洪亮,孟轶男,耿长江,高为广,张天桥,李罡,邵搏,辛洁,卢红洋,毛悦,袁海波,刘成,胡小工,楼益栋.北斗三号全球导航卫星系统服务性能评估:定位导航授时、星基增强、精密单点定位、短报文通信与国际搜救[J].测绘学报,2021,50(4):427-435. |
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| 作者姓名： | 蔡洪亮 孟轶男 耿长江 高为广 张天桥 李罡 邵搏 辛洁 卢红洋 毛悦 袁海波 刘成 胡小工 楼益栋 |
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| 作者单位： | 北京跟踪与通信技术研究所,北京 100094;中国卫星导航系统管理办公室测试评估研究中心,北京 100094;北京卫星导航中心,北京 100094;中国电子科技集团公司第二十研究所,陕西 西安710068;中国交通通信信息中心,北京 100011;西安测绘研究所,陕西 西安 710054;中国科学院国家授时中心,陕西 西安 710600;中国科学院上海天文台,上海 200030;武汉大学卫星导航定位技术研究中心,湖北 武汉 430079 |
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| 摘 要： | 本文给出了北斗三号全球导航卫星系统定位导航授时、星基增强、精密单点定位、区域短报文通信、全球短报文通信和国际搜救共6类服务的测试评估方法,并利用实测数据对各类服务的核心指标进行了评估.结果表明,定位导航授时服务方面,空间信号测距误差0.23 m(RMS),空间信号可用性99.44％,空间信号连续性99.99％,PDOP...
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| 关 键 词： | 北斗三号全球导航卫星系统 定位导航授时 星基增强 精密单点定位 短报文通信 搜救 服务性能 |
BDS-3 performance assessment:PNT,SBAS,PPP,SMC and SAR |
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| CAI Hongliang,MENG Yinan,GENG Changjiang,GAO Weiguang,ZHANG Tianqiao,LI Gang,SHAO Bo,XIN Jie,LU Hongyang,MAO Yue,YUAN Haibo,LIU Cheng,HU Xiaogong,LOU Yidong.BDS-3 performance assessment:PNT,SBAS,PPP,SMC and SAR[J].Acta Geodaetica et Cartographica Sinica,2021,50(4):427-435. |
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| Authors: | CAI Hongliang MENG Yinan GENG Changjiang GAO Weiguang ZHANG Tianqiao LI Gang SHAO Bo XIN Jie LU Hongyang MAO Yue YUAN Haibo LIU Cheng HU Xiaogong LOU Yidong |
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| Institution: | (Beijing Institute of Tracking and Telecommunication Technology, Beijing 100094, China;Test and Assessment Research Center of China Satellite Navigation Office, Beijing 100094, China;Beijing Satellite Navigation Center, Beijing 100094, China;The 20th Research Institute of CETC, Xi’an 710068, China;China Transport Telecommunications and Information Center, Beijing 100011, China;Xi’an Research Institute of Surveying and Mapping, Xi’an 710054, China;National Timing Service Center, China Academy of Science, Xi’an 710600, China;Shanghai Astronomical Observatory, China Academy of Science, Shanghai 200030, China;GNSS Research Center of Wuhan University, Wuhan 430079, China) |
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| Abstract: | With algorithm and methods provided,performance of BDS-3 services including PNT(positioning,navigation and timing),SBAS(satellite-based augmentation system),PPP(precise point positioning),SMC(short message communication)and SAR(search and rescue)is evaluated using different measurement data.Results show that signal in space(SIS)accuracy is 0.23 m(RMS),SIS availability is 99.44%,SIS continuity is 99.99%,PDOP availability is 100%,positioning accuracy is 1.3 m in horizontal and 2.09 m in vertical direction,positioning availability is 99.93%and timing accuracy is 14.7 ns(95%)for PNT service.For SBAS,positioning accuracy in horizontal direction is 1.03 m and in vertical direction is 2.60 m(95%),APV-I availability is 100%.For PPP service,positioning accuracy is 0.17 m(95%)in horizontal direction and 0.22 m(95%)in vertical direction,the average convergence time is 9 min.For regional short message communication,the communication success rate is 99.6%,the communication capacity is 15.3 million times per hour(uplink),9.35 million times per hour(downlink);while for global short message communication,communication success rate is 96.46%,communication capacity is 0.4 million times per hour(uplink),0.21 million times per hour(downlink).For search and rescue service,the receiving success rate is 98.3%(with sending power 37 dBm). |
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| Keywords: | BDS-3 PNT SBAS PPP SMC SAR performance |
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