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Research on High Precision Time Comparison Technology under Distributed Punctuality Architecture
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Chongyang WANG1, Wencong DU1, Yun ZHOU2, Tieqiang LIU1, Jianshe SUN3
Journal of Telemetry, Tracking and Command | 2024, 45(3) : 65 - 71
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Journal of Telemetry, Tracking and Command | 2024, 45(3): 65-71
TT & C Communication and Navigation
Research on High Precision Time Comparison Technology under Distributed Punctuality Architecture
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Chongyang WANG1, Wencong DU1, Yun ZHOU2, Tieqiang LIU1, Jianshe SUN3
Affiliations
  • 1.The 54th Research Institute of CETC, Shijiazhuang 050081, China
  • 2.PLA Army Equipment Department Shijiazhuang 1st Region Military Representative Office, Shijiazhuang 050000, China
  • 3.61711 Troops, PLA, Kashi 844000, China
Published: 2024-05-15 doi: 10.12347/j.ycyk.20240226001
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In order to meet the demand for distributed joint timekeeping system, a remote time comparison system was de-signed, which includes satellite co-visibility, satellite bi-directional, and fiber bi-directional time comparison means. The domestic equipment used in the system has the same time comparison accuracy as imported equipment, achieving high-precision clock differ-ence measurement between laboratories using multiple means. The relative zero value calibration of the time comparison equipment was completed using a mobile calibration station, and a 20-day time comparison was conducted between laboratories that were 50 km apart. The experimental results show that the mean clock difference measured by the three comparison means at the two locations is less than 1 ns, the trend is the same, and the amplitude is similar, and all can accurately measure the clock difference between the two locations.

Time comparison  /  Mobile calibration station  /  Zero calibration
Chongyang WANG, Wencong DU, Yun ZHOU, Tieqiang LIU, Jianshe SUN. Research on High Precision Time Comparison Technology under Distributed Punctuality Architecture[J]. Journal of Telemetry, Tracking and Command, 2024 , 45 (3) : 65 -71 . DOI: 10.12347/j.ycyk.20240226001
Year 2024 volume 45 Issue 3
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54
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Article Info
doi: 10.12347/j.ycyk.20240226001
  • Receive Date:2024-02-26
  • Online Date:2026-03-18
  • Published:2024-05-15
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History
  • Received:2024-02-26
  • Revised:2024-03-28
Affiliations
    1.The 54th Research Institute of CETC, Shijiazhuang 050081, China
    2.PLA Army Equipment Department Shijiazhuang 1st Region Military Representative Office, Shijiazhuang 050000, China
    3.61711 Troops, PLA, Kashi 844000, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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