Results 21 to 30 of about 12,241 (271)
Research on Beidou and GPS dual satellite positioning algorithms for substation site positioning
International Journal of Metrology and Quality Engineering, 2020 With the rapid development of global satellite navigation system technology, multi-mode satellite navigation positioning technology that can be compatible with multiple navigation systems at the same time is bound to become the future development trend ...
Feng Junjie +3 more
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
Journal of Marine Science and Engineering, 2023 In the context of utilizing BeiDou short-message communication (SMC) for transmitting maritime safety information, challenges arise regarding information redundancy and limited message length.
Jiwei Hu +4 more
semanticscholar +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
openaire +3 more sources
A Multi-Correlation Peak Phase Deblurring Algorithm for BeiDou B1C Signals in Urban Environments
Remote Sensing, 2023 With the widespread global application of BeiDou navigation, BeiDou B1C signaling based on Quadrature Multiplexed Binary Offset Carrier (QMBOC) modulation is expected to be extensively used in urban environments due to its wider signal bandwidth, smaller
Xu Yang +4 more
semanticscholar +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
Cherry defect and classification detection based on improved YOLOX model
Shipin yu jixie, 2023 Objective: In order to expand the scope of cherry sales and achieve rapid grading of cherries under industrial conditions. Methods: Firstly, the YOLOX network was used to detect the defective fruit, in order to solve some problems where the defect was ...
LIU Jing-yu +4 more
doaj +1 more source
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
GPS Solutions, 2022 Since the release of the phase center calibrations for both the receivers and the satellites, the BeiDou Navigation Satellite System (BDS) became a new potential contributor to the realization of the terrestrial reference frame (TRF) scale of future ...
R. Zajdel +2 more
semanticscholar +1 more source