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Quantitative Analysis between Observation Duration and BDS Deformation Monitoring Performance
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Yu TANG1, Junbo SHI1, *, Cheng HOU1, Jiming GUO1, Jingui ZOU1
Journal of Geodesy and Geodynamics | 2025, 45(4) : 339 - 343, 391
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Journal of Geodesy and Geodynamics | 2025, 45(4): 339-343, 391
Quantitative Analysis between Observation Duration and BDS Deformation Monitoring Performance
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Yu TANG1, Junbo SHI1, *, Cheng HOU1, Jiming GUO1, Jingui ZOU1
Affiliations
  • 1 School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, China

    • TANG Yu, postgraduate, majors in GNSS deformation monitoring, E-mail:

About Author:

TANG Yu, postgraduate, majors in GNSS deformation monitoring, E-mail:

Published: 2025-04-15 doi: 10.14075/j.jgg.2024.05.229
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Based on 26 496 BDS monitoring sequences with various observation durations in 2023, we establish quantitative function expressions relating the availability rate, monitoring precision of BDS results to observation duration. The results show that there is a significant positive correlation between the availability rate of monitoring results and observation duration, with an average correlation coefficient of 0.73 for six monitoring stations. The monitoring precision in N, E, U directions exhibit significant negative correlations with observation duration, with correlation coefficients of -0.83, -0.90, and -0.77, respectively. To ensure high timeliness, high availability rate (>95%), and high precision (horizontal precision better than 3 mm, vertical precision better than 5 mm), an optimal observation duration of 3 hours is recommended.

BDS  /  observation duration  /  monitoring result availability  /  monitoring precision  /  correlation analysis
唐雨, 史俊波, 侯诚, 郭际明, 邹进贵. 观测时长与北斗变形监测性能的定量分析. 大地测量与地球动力学, 2025 , 45 (4) : 339 -343, 391 . DOI: 10.14075/j.jgg.2024.05.229
Yu TANG, Junbo SHI, Cheng HOU, Jiming GUO, Jingui ZOU. Quantitative Analysis between Observation Duration and BDS Deformation Monitoring Performance[J]. Journal of Geodesy and Geodynamics, 2025 , 45 (4) : 339 -343, 391 . DOI: 10.14075/j.jgg.2024.05.229
Funding
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  • National Natural Science Foundation of China(42274050)
  • Open Fund of Technology Innovation Center for Geohazard Monitoring and Risk Early Warning, MNR(TICGM-2023-06)
Appendix
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Year 2025 volume 45 Issue 4
18
7
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Article Info
doi: 10.14075/j.jgg.2024.05.229
  • Receive Date：2024-05-13
  • Online Date：2026-10-30
  • Published：2025-04-15
Article Data
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History
  • Received：2024-05-13
Funding
National Natural Science Foundation of China(42274050)
Open Fund of Technology Innovation Center for Geohazard Monitoring and Risk Early Warning, MNR(TICGM-2023-06)
Affiliations
    1 School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, China
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https://castjournals.cast.org.cn/joweb/ddcl/EN/10.14075/j.jgg.2024.05.229
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
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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