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“Chinese Science: Physics, Mechanics, Astronomy” publishes a special issue on “Data Analysis and Applications of the BeiDou Satellite Navigation System.”
Release time:
2015-08-07
Source:
Chinese Academy of Sciences Website, June 16, 2015
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Chinese Science: Physics, Mechanics, Astronomy, 2015, No. 7 The latest issue has just been published. Analysis and Application of Data from the BeiDou Satellite Navigation System The special feature’s cover image showcases China’s BeiDou Satellite Navigation System, which was independently developed and successfully put into operation. Currently, the BeiDou regional system provides users with a radio determination service (RDSS) and a radio navigation service (RNSS)—integrating navigation and positioning, short-message communication, and time synchronization—through a uniquely designed constellation of 14 in-orbit satellites: 5 geostationary orbit (GEO) satellites, 5 inclined geosynchronous orbit (IGSO) satellites, and 4 medium Earth orbit (MEO) satellites. The system delivers positioning accuracy better than 10 meters, velocity measurement accuracy better than 0.2 meters per second, and time synchronization accuracy better than 50 nanoseconds. With the Earth at the center of the constellation, this configuration underscores BeiDou’s mission to serve the Asia-Pacific region, the globe, and humanity as a whole. The background features a starry sky depicting the Big Dipper, symbolizing that our independently developed BeiDou system has become a vital national space infrastructure—and in the future, it will surely shine as the brightest new star in space.
Editor ： The BeiDou Satellite Navigation System (BDS) is a global satellite navigation system (GNSS) independently developed by China. It follows the U.S. Global Positioning System (GPS). 、 The BeiDou Navigation Satellite System (BDS) is the third mature satellite navigation system after Russia’s GLONASS. Together with GPS, GLONASS, and Europe’s Galileo system currently under construction, BDS forms the four major global satellite navigation systems for the foreseeable future. BDS has been recognized by the United Nations Committee on Global Navigation Satellite Systems as a provider. Since December 26, 2012, BDS has been providing services to China and surrounding regions, with a positioning accuracy of 10 meters, a velocity measurement accuracy of 0.2 meters per second, and a timing accuracy of 10 nanoseconds. BDS It consists of three parts: the space segment, the ground segment, and the user segment. It can provide high-precision services to various users worldwide, 24 hours a day, all year round. 、 High-reliability positioning, navigation, and timing services, coupled with short-message communication capabilities. Its space segment comprises 14 navigation satellites: 5 are located in geostationary orbit (GEO), 5 in inclined geosynchronous orbit (IGSO), and 4 in medium Earth orbit (MEO). The ground segment consists of a master control station, injection stations, and monitoring stations distributed across China. BDS features certain top-level design characteristics that distinguish it from other GNSS systems. For example, while providing basic PNT services to general users, BDS also offers differential and integrity enhancement services. BDS’s satellite constellation is a hybrid configuration comprising GEO, IGSO, and MEO satellites; however, its ground-based monitoring network is regional in nature. To ensure that the system meets its design specifications—such as service accuracy, continuity, integrity, and availability—and to further enhance service performance, it is necessary to develop and establish data measurement and processing methods that differ from those used by other GNSS systems like GPS. In recent years, the journal “Science China: Physics, Mechanics & Astronomy” has published several articles introducing the distinctive design features of the BDS system, its key operational principles, information-processing methodologies, and preliminary computational results. This special issue focuses on the analysis and application of BDS satellite navigation system data, aiming to improve the performance of BDS services. It also seeks to address some issues that remain for further investigation within the BDS system—for instance, the major challenges faced during BDS’s transition from a regional to a global system and potential approaches to overcoming these challenges. This special issue consists of 11 papers. The content covers analyses of the accuracy of BDS satellite clock offset predictions, calculations of time synchronization errors among BDS stations, optimization of BDS ionospheric models during solar storms, BDS’s contribution to the development of global ionospheric models, rapid diagnosis and recovery of in-orbit BDS satellite failures, fast orbit recovery for GEO satellites with orbital biases, accuracy comparisons among different filtering methods in BDS relative positioning, definitions and usage guidelines for BDS basic navigation messages, enhancement of BDS information service performance based on big data technologies, autonomous global BDS orbit determination using inter-satellite ranging, and BDS autonomous navigation based on broadcast ephemeris parameters. The works included in this special issue represent only a portion of the efforts made by young scholars involved in the construction and operation of BDS to improve its performance and capabilities. Due to space limitations, this special issue cannot cover numerous other BDS-related fields, such as navigation signals, satellite platforms, and onboard atomic clocks. GPS As one of the most mature GNSS systems, The fundamental research featured in this special issue has played a critically important role in the course of BDS’s over 20 years of continuous refinement and improvement. We believe that as long as more scholars are willing to learn about BDS and conduct further foundational research on its systematic characteristics, BDS will become a leading member of the GNSS family.
Hu Xiaogong, Liao Xinhao Shanghai Astronomical Observatory, Chinese Academy of Sciences 2015 May of the year
Special Feature Articles ： Hu Xiaogong , Liao Xinhao Chinese Science : Physics Mechanics Astronomy , 2015, 45(7): 079501
Analysis of the Forecasting Accuracy of BeiDou Satellite Clocks Based on a General Clock Bias Model Tang Guifen , Xu Xueqing , Cao Jidong , Liu Xiaoping , Wang Qunyang Chinese Science : Physics Mechanics Astronomy , 2015, 45(7): 079502 | doi: 10.1360/SSPMA2015-00121
Yang Wenke , Gong Hang , Hu Xiaogong , Wei Suyuan , Guo Wenpu Chinese Science : Physics Mechanics Astronomy , 2015, 45(7): 079503 | doi: 10.1360/SSPMA2015-00116
Optimization of BeiDou Ionospheric Modeling During Solar Storms Dong Enqiang , Chang Zhiqiao , Li Xiaojie , Tan Hongli , Fan Jiachen , Wu Xiaoli Chinese Science : Physics Mechanics Astronomy , 2015, 45(7): 079504 | doi: 10.1360/SSPMA2015-00120
Based on BDS/GPS Global Ionospheric Modeling for Dual Systems Xue Junchen , Song Shuli , Zhu Wenyao Chinese Science : Physics Mechanics Astronomy , 2015, 45(7): 079505 | doi: 10.1360/SSPMA2015-00130
Rapid Fault Diagnosis and Recovery for In-Orbit Navigation Satellites Liu Xiaoping , Liu Li , Cao Jidong , Tang Guifen , Dong Enqiang , Zhu Ling Feng , Li Jing Chinese Science : Physics Mechanics Astronomy , 2015, 45(7): 079506 | doi: 10.1360/SSPMA2015-00122
Track position offset GEO Satellite Orbit Rapid Recovery Technology Li Xiaojie , Guo Rui , Hu Guangming , Dong Enqiang , Tang Guifen , Su Ranran Chinese Science : Physics Mechanics Astronomy , 2015, 45(7): 079507 | doi: 10.1360/SSPMA2015-00136
CNMC With Hatch Comparison of Filtering Methods and Accuracy Analysis in BeiDou Relative Positioning Chang Zhiqiao , Hu Xiaogong , Guo Rui , Cao Yueling , Wu Xiaoli , Wang Aibing , Dong Enqiang Chinese Science : Physics Mechanics Astronomy , 2015,45(7): 079508 | doi: 10.1360/SSPMA2015-00144
Definition and Usage of the BeiDou Basic Navigation Message Liu Li , Shi Xin , Li Jing , Zhao Jinxian , Guo Rui , Wu Xiaoli , He Feng Chinese Science : Physics Mechanics Astronomy , 2015, 45(7): 079509 | doi: 10.1360/SSPMA2015-00124
Performance Enhancement of Beidou Navigation Information Services Based on Big Data Technology Cao Jidong , Tang Guifen , Liu Xiaoping , Sun Weijie Chinese Science : Physics Mechanics Astronomy , 2015, 45(7): 079510 | doi: 10.1360/SSPMA2015-00119
Chen Yanling , Hu Xiaogong , Zhou Shanshi , Song Xiaoyong , Huang Yong , Mao Yue , Huang Cheng , Chang Zhiqiao , Wu Shan Chinese Science : Physics Mechanics Astronomy , 2015, 45(7): 079511 | doi: 10.1360/SSPMA2015-00123
Satellite Autonomous Navigation Algorithm Based on Broadcast Ephemeris Parameters Mao Yue , Hu Xiaogong , Song Xiaoyong , Chen Yanling , Jia Xiaolin , Wu Xianbing Chinese Science : Physics Mechanics Astronomy , 2015, 45(7): 079512 | doi: 10.1360/SSPMA2015-00126 |
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