Results 281 to 290 of about 16,133,606 (323)

CGGTTS-Version 2E: integration of BDS-3

Metrologia
The Common GNSS Generic Time Transfer Standard version 2E has been presented in Petit and Defraigne (2015 Metrologia 52 G1 10.1088/0026-1394/52/6/G1), covering clock solutions obtained with GPS, GLONASS, Galileo and BeiDou (also called BDS for BeiDou ...
P. Defraigne, G. Tagliaferro
semanticscholar   +1 more source

Preliminary Assessment of BDS-3 PPP Service Performance

2021
The BDS-3 has been officially commissioned since July 31, 2020. As one of the seven services of BDS-3, precision point positioning is free to users in China and its surrounding areas. In order to assess the performance of BDS-3 PPP service, the observation data from eight domestic stations were analyzed in terms of the accuracy of corrections, the ...
Chenghe Fang, Changjiang Geng, Yifang Zhao, Cheng Liu, Yinhu Ma, Qi Li, Hongliang Cai, Tianyang Sun   +7 more
openaire   +2 more sources

BDS-3 precise orbit and clock solution at Wuhan University: status and improvement

Journal of Geodesy, 2023
Jing Guo, Chen Wang, Guo Chen, Xiaolong Xu, Qile Zhao   +4 more
semanticscholar   +1 more source

Accuracy evaluation of the latest BDGIM for BDS-3 satellites

Advances in Space Research, 2019
Abstract A novel model of the BeiDou Global Ionospheric delay correction Model (BDGIM) is used as the global broadcasting ionospheric correction model for the third generation of BeiDou Navigation Satellite System (BDS-3). It has been successfully implemented on five BDS-3 test satellites.
Yongxing Zhu, Shusen Tan, Qinghua Zhang, Xia Ren, Xiaolin Jia   +4 more
openaire   +2 more sources

An investigation of PPP time transfer via BDS-3 PPP-B2b service

GPS Solutions, 2023
Yulong Ge, Xinyun Cao, Daqian Lyu, Zaimin He, Fei Ye, Gongwei Xiao, Fei Shen   +6 more
semanticscholar   +1 more source

Francia, Bd. 3 (1975)

2018
Titel Inhaltsverzeichnis...V-XI Le monasterium Scottorum de Honau et la famille des ducs d’Alsace au VIIIe siècle. Vestiges d'un cartulaire perdu...1-87 Pippin III. und die fränkischen Klöster...88-146 La confrérie des merciers de Rennes au XVe siècle. Contribution à l’histoire économique et sociale de la ville de Rennes...147-220 Humanisme et grandes ...
openaire   +1 more source

BDS-3 Signal Quality Monitoring and Integrity Evaluation

International Conference on Communication, Computing & Security
Satellite Autonomous Integrity Monitoring(SAIM) is an effective way to achieve global integrity when the number of Beidou system monitoring stations is limited. China has conducted research on satellite autonomous integrity monitoring technology for many
Xiao Liu, Tao Yan, Lang Bian, Ying Wang, Wenlong Ma, Lei Wang   +5 more
semanticscholar   +1 more source

INDIANA, Bd. 3 (1975)

1975
Time and Script in Ancient Mesoamerica...9-40 Weiteres zur Frage der altmexikanischen Nachtherren...41-66 Relatos de los tojolabales, mayas de los Altos de Chiapas en México...67-83 Escriptura Quiché 1786. Ein Manuskript aus der "Lehmann-Bibliothek" des Ibero-Amerikanischen Instituts in Berlin...85-92 Biografía Atrateña.
openaire   +1 more source

Performance of BDS-3: satellite visibility and dilution of precision

GPS Solutions, 2019
We describe a method to assess the performance of the third-generation BeiDou navigation satellite system (BDS-3), in terms of satellite visibility and dilution of precision (DOP), on global and regional scales. Different from traditional methods, this method estimates the satellite visibility and DOP without requiring real or simulated ephemerides ...
Minghua Wang, Minghua Wang, Danan Dong, Junping Chen, Lingdong Meng, Lingdong Meng, Haomeng Cui, Ahao Wang, Ahao Wang, Jiexian Wang   +9 more
openaire   +2 more sources

BDS-3 Onboard Atomic Clock Performance Evaluation

2020
In order to evaluate the performance of the onboard atomic clock of BDS-3, mult-GNSS observation of the global distributed iGMAS and IGS/MGEX stations are collected, and the BDS/GPS combined precise orbit determination and clock estimation are conducted. The frequency stability of GPS and BDS-3 onboard atomic clocks is analyzed with the resulting clock
Wei Zhou, Xiaolin Jia, Rengui Ruan, Rong Jin   +3 more
openaire   +2 more sources