Results 171 to 180 of about 12,661 (218)

Estimating the transmissibility of the 2025 chikungunya fever outbreak in Foshan, China: a modelling study. [PDF]

Infect Dis Poverty
Zhao Y, Li J, Zhao Z, Zeng Z, Zhang B, Xie Y, Su Y, Rui J, Yang Z, Huang J, Chen T.   +10 more
europepmc   +1 more source

Understanding the impact of covariates for trachoma prevalence prediction using geostatistical methods. [PDF]

BMC Glob Public Health
Sasanami M, Almou I, Diori AN, Bakhtiari A, Beidou N, Bisanzio D, Boyd S, Burgert-Brucker CR, Amza A, Gass K, Kadri B, Kebede F, Masika MP, Olobio NP, Seife F, Souley ASY, Tefera A, Kello AB, Solomon AW, Harding-Esch EM, Giorgi E.   +20 more
europepmc   +1 more source

IGS BeiDou-3 Satellite Antenna Calibration Campaign

Steigenberger, Peter, Rebischung, Paul, Akiyama, Kyohei, Brockmann, Elmar, Deng, Zhiguo, Dilssner, Florian, Duan, Bingbing, Geng, Jianghui, Guo, Jing, Saquet, Eléonore, Song, Shuli, Villiger, Arturo, Montenbruck, Oliver   +12 more
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Yaw attitude modeling for BeiDou I06 and BeiDou-3 satellites

GPS Solutions, 2018
The estimated yaw angles of the BeiDou I06 satellite demonstrated that the satellite experienced midnight- or noon-turn maneuvers when the sun elevation angle above the orbital plane (β angle) was in the range of [− 3°, + 3°] and the orbital angle was in the range of approximately [− 6°, 6°] or [174°, 186°].
Chen Wang, Jing Guo, Qile Zhao
exaly   +2 more sources

Accuracy and reliability of BeiDou clocks

Journal of Applied Geodesy, 2023
Abstract The subject of this paper is the analysis of the stability of BeiDou system clocks; currently only signals from two blocks, BSD-2 and BDS-3, are available. For elaboration, 30 s clock corrections from the 2014 to 2020 period for 37 satellites were used (9 IGSO, 28 MEO).
Katarzyna Chwedczuk, Ciro Gioia, Bogdan Skorupa, Kamil Maciuk   +3 more
openaire   +1 more source

Simulation Analysis of Positioning Performance of BeiDou-2 and Integrated BeiDou-2/GPS

2010 International Conference on Communications and Mobile Computing, 2010
A new method has been proposed for assessing availability of satellite navigation system. Software has been compiled to simulate BeiDou-2 (BD-2) constellation with 12 satellites and GPS constellation. Based on 27 stations of Crustal Moment Observation Network of China, satellite visibility, dilution of precision (DOP), and availability of BD-2, GPS and
CanHui Chen, XiaoLin Zhang
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BeiDou/Compass und IRNSS

2009
Dieses Kapitel umfasst die zugangliche Information zum Satellitennavigationssystem BeiDou/Compass der Volksrepublik China. Die Dienste werden beschrieben, die Bahnen der Satelliten (GEO und MEO) und die verwendeten Funkfrequenzen (L-Band) werden genannt, die Vorzuge und Einschrankungen des Systems diskutiert und die Einsatzmoglichkeiten des Systems in ...
Hans Dodel, Dieter Häupler
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BeiDou Time Transfer With the Standard CGGTTS

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2016
The R2CGGTTS software tool developed at the Royal Observatory of Belgium (ROB) to provide clock solutions in the standard Common GNSS Generic Time Transfer Standard (CGGTTS) has been extended to BeiDou Navigation Satellite System (BDS). The BDS includes satellites in three different orbits: 1) Medium Earth Orbit (MEO); 2) Inclined Geosynchronous ...
Wei, Huang, Pascale, Defraigne
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Combined BeiDou-2 and BeiDou-3 instantaneous RTK positioning: stochastic modeling and positioning performance assessment

Journal of Spatial Science, 2019
The global BeiDou navigation satellite system (BDS-3) has been in operation recently and many related applications have been already compatible with BDS-3 satellites.
Weikai Miao, Bofeng Li, Zhiteng Zhang, Xuewen Zhang   +3 more
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BeiDou integrated disaster reduction application platform

China Communications, 2015
To better improve the emergency communication and location-based services of disaster information reporting network for serious natural disaster emergency response and relief, the national natural disaster reduction application platform based on BeiDou navigation satellite system is constructed.
Xuefeng Lu, Yongfeng Liao, Bo Li, Lan Deng   +3 more
openaire   +1 more source