Results 11 to 20 of about 2,550 (175)
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 +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
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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
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Validation of BeiDou Observations [PDF]
Journal of Applied Geodesy, 2014 AbstractThis 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. Observations from each satellite are independently screened using a local modeling approach.
El-Mowafy, Ahmed, Hu, C.
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ANALYSIS OF POSITIONING DEVIATION BETWEEN BEIDOU AND GPS BASED ON NATIONAL REFERENCE STATIONS IN CHINA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 In order to probe into the characteristics of positioning deviation between Beidou Navigation Satellite System (Beidou) and global positioning system (GPS), and investigate possible contribution of Beidou data to refinement of global coordinate system ...
M. Chen, Q. Zhang, Q. Zhang
doaj +1 more source
Design and implementation of clock synchronization scheme for mine distributed acquisition system
Gong-kuang zidonghua, 2021 Due to its accuracy and application limitations, single clock synchronization technology can not meet the high-precision and high-reliability clock synchronization accuracy requirements of the mine distributed acquisition system.
AN Sai
doaj +1 more source
Synthetic Meta-Signal Observations: The Beidou Case
Sensors, 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 ...
Daniele Borio, Ciro Gioia
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Sensors, 2020 The secondary modulation with the Neumann-Hoffman code increases the possibility of bit sign transition. Unlike other GNSS signals, there is no pilot component for synchronization in BeiDou B1/B3 signals, which increases the complexity in acquisition.
Menghuan Yang +4 more
doaj +1 more source
OSA Patient Monitoring Based on the Beidou System [PDF]
Frontiers in Public Health, 2021 This paper presents an OSA patient interactive monitoring system based on the Beidou system. This system allows OSA patients to get timely rescue when they become sleepy outside. Because the Beidou position marker has an interactive function, it can reduce the anxiety of the patient while waiting for the rescue.
Cai Liangming +9 more
openaire +3 more sources
Enhancing BeiDou/GNSS integrity with minmax optimization. [PDF]
PNAS NexusAbstract In navigation scenarios, integrity is a crucial metric for evaluating system availability, with improvements in integrity having implications for transportation, security, and surveillance. This article proposes a novel integrity monitoring strategy, termed the optimal advanced receiver autonomous integrity monitoring ...
Qiu J, Chen C, Lei S, Lyu Y, Xie S.
europepmc +2 more sources