Real-time LEO Satellite Clock Estimation Constraining Short-term Predicted Orbits
the research team of WANG Kan from the National Time Service Center(NTSC) of the Chinese Academy of Sciences(CAS), and the team of Prof. Ahmed El-Mowafy from Curtin University, Australia, have jointly proposed a new method to improve the real-time Low Earth Orbit (LEO) satellite clock precision.
08 16, 2024
Approach to Calibrate PCO and Hardware Delay for LEO Satellite Antenna
A joint research team from the National Time Service Center(NTSC) of the Chinese Academy of Sciences(CAS) and Curtin University, Australia proposed an approach to calibrate the PCO and hardware delay for LEO satellite antenna downlinking navigation signals.
07 17, 2024
NTSC Researchers Propose a New Data Fusion Algorithm to Improve the Accuracy of Time Transfer Links
the time keeping group of NTSC proposed a new method for data fusion in the international time transfer links of the national time reference system. The new method, titled as "Time Transfer Link fusion algorithm based on wavelet multi-resolution analysis", was published in the internationally renowned journal, Measurement.
06 16, 2024From 5th to 9th August, 2024, the National Time Service Center (NTSC) of the Chinese Academy of Sciences(CAS) and The United Nations African Regional Centre for Space Science and Technology Education - English (UN-ARCSSTE-E) jointly organized the International BeiDou/GNSS Training Workshop in Obafemi Awolowo University Campus, Ile-Ife, Nigeria, which established BeiDou’s closer technical exchange and communication with African countries in satellite navigation field.
Two popular science books nominated by the National Time Service Center,"Navigation Stars and Sinan" and "Sky Gazing(chinese version)" was selected in the list of "Outstanding Popular Science Books of Shaanxi Province in 2023" (15 in total) in the 2023 Shaanxi Province Outstanding Popular Science Book Selection.
From 15th to 20th Oct. 2023, the seventeenth meeting of the International Committee on Global Navigation Satellite Systems (ICG-17) and Series Meetings were held in Madrid, Spain in hybrid format. Led by Professor LU Xiaochun, the group leader of Chinese delegation, 6 participants of NTSC attended the great event in Madrid.
70th Anniversary of Beijing Time---National Time Service Center
In March 2001, the Shaanxi Astronomy Observatory was renamed as the National Time Service Center (NTSC) with the approval of the State Commission Office of Public Sector Reform. Since then, NTSC has been focusing on time service: satisfying the urgent needs of China’s development for different precision especially high precision time service
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70th Anniversary of Beiing Time---Low Frequency Time-code Time Service Station
The National Time Service Center (formerly Shaanxi Astronomy Observatory) began to study the low-frequency time code timing technology in 1993. In 1999, a practical test platform was built in Pucheng, Shaanxi Province. In 2007, a high-power low frequency time-code time service station was set up in Shangqiu, Henan Province, the call sign is BPC.
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70th Anniversary of Beijing Time---Long Wave Time Service Station
In order to meet the requirements of measurement and control of satellite launch and space technology development, the development and construction of the long wave time service station (326 project) was launched officially after the approval of the State Council in June 1973.
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70th Anniversary of Beijing Time---Shaanxi Astronomy Observatory
In the 1960s, due to the demands of large-scale economic construction, China decided to build a special time service station in the hinterland of China as soon as possible.
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