Results 11 to 20 of about 11,569 (270)
BeiDou-G2: Past and Present [PDF]
arXiv, 2022 In January 2022, the defunct satellite BeiDou-G2 was pulled out of geostationary orbit by Shijian-21 to a graveyard orbit. For safe docking and operation, it was necessary to determine the rotation state in advance. In this paper, we show the evolution of the rotation of the BeiDou-G2 satellite based on the photometry observation data for the past 10 ...
arxiv +3 more sources
Validation of BeiDou Observations [PDF]
Journal of Applied Geodesy, 2014 This study presents validation of BeiDou measurements in un-differenced standalone mode and experimental results of its application for real data. A reparameterized form of the unknowns in a geometry-free observation model was used.
El-Mowafy, Ahmed, Hu, C.
core +4 more sources
Overcoming the Challenges of BeiDou Receiver Implementation [PDF]
Sensors, 2014 Global Navigation Satellite System (GNSS)-based positioning is experiencing rapid changes. The existing GPS and the GLONASS systems are being modernized to better serve the current challenging applications under harsh signal conditions.
Mohammad Zahidul H. Bhuiyan +4 more
doaj +4 more sources
Precise Point Positioning with the BeiDou Navigation Satellite System [PDF]
Sensors, 2014 By the end of 2012, China had launched 16 BeiDou-2 navigation satellites that include six GEOs, five IGSOs and five MEOs. This has provided initial navigation and precise pointing services ability in the Asia-Pacific regions.
Min Li +5 more
doaj +4 more sources
ARAIM for Vertical Guidance Using GPS and BeiDou [PDF]
Journal of Global Positioning Systems, 2013 An advanced Receiver Autonomous Integrity Monitoring (ARAIM) approach is investigated when augmenting GPS satellites with the current regional BeiDou constellation.
El-Mowafy, Ahmed
core +4 more sources
Initial Results of the Precise Orbit Determination for the New-Generation BeiDou Satellites (BeiDou-3) Based on the iGMAS Network [PDF]
ISPRS International Journal of Geo-Information, 2016 By August 2016, 5 new-generation BeiDou satellites (BeiDou-3) have successfully been launched. The observations of a very limited number of 9 International GNSS (Global Navigation Satellite System) Monitoring and Assessment Service (iGMAS) stations and ...
Bingfeng Tan +4 more
doaj +2 more sources
Synthetic Meta-Signal Observations: The Beidou Case. [PDF]
Sensors (Basel), 2023 A Global Navigation Satellite System (GNSS) meta-signal is obtained when two or more side-band components from different frequencies are jointly processed as a single entity. This requires advanced signal processing techniques able to cope with the subcarrier, generated by the interaction of the side-band components, and handle possibly multi-peaked ...
Borio D, Gioia C.
europepmc +4 more sources
Design of Beidou timing module
IOP Conference Series: Earth and Environmental Science, 2020 Abstract The Beidou timing module receives the Beidou Satellite Information, calculates the time and positioning information, transmits the time and timing information through various external interfaces, and has the function of short message forwarding. This paper presents a system design scheme for the Beidou time-keeping module, which
Quanyu Sun
openalex +3 more sources
Characterization and Performance Assessment of BeiDou-2 and BeiDou-3 Satellite Group Delays
NAVIGATION: Journal of the Institute of Navigation, 2022 Based on one year of data, a comprehensive assessment of broadcast group delays and differential code biases (DCBs) from network solutions is presented for all open BeiDou signals. Daily DCB estimates exhibit a precision of 0.1 ns, which also places a limit on long-term variations of the satellite group delays.
Montenbruck, Oliver +3 more
openaire +3 more sources
The BeiDou Navigation Message [PDF]
Journal of Global Positioning Systems, 2013 The article provides an overview of the BeiDou navigation message contents and highlights its specific communalities and differences with respect to other GNSS constellations. Making use of data collected by multi-GNSS monitoring stations of the MGEX and CONGO networks, the quality of BeiDou broadcast ephemerides is assessed through the analysis of ...
Montenbruck, Oliver +1 more
openaire +2 more sources