Results 1 to 10 of about 3,904 (159)
Characteristics of BeiDou-3 Experimental Satellite Clocks [PDF]
Remote Sensing, 2018 The characteristics of the improved Atomic Frequency Standard (AFS) operated on the latest BeiDou-3 experimental satellites are analyzed from day-of-year (DOY) 254 to 281, of the year 2017, considering the following three aspects: stability, periodicity,
Qile Zhao +3 more
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Ambiguity resolution performance with GPS and BeiDou for LEO formation flying [PDF]
Advances in Space Research, 2014 The evolving BeiDou Navigation Satellite System constellation brings new opportunities for high-precision applications. In this contribution the focus will be on one such application, namely precise and instantaneous relative navigation of a formation of
Sandra Verhagen, Peter J G Teunissen
exaly +2 more sources
Augment BeiDou real-time precise point positioning using ECMWF data
Earth, Planets and Space, 2018 The Chinese BeiDou Navigation Satellite System has shown potential for precise positioning with a comparable accuracy to that of the Global Positioning System (GPS) at the centimeter level for the horizontal component and the sub-centimeter level for the
Kemin Zhu +5 more
doaj +2 more sources
LSOS: An FG Position Method Based on Group Phase Ranging Ambiguity Estimation of BeiDou Pseudolite
Remote Sensing, 2023 Due to the influence of indoor space environments, the carrier phase information obtained by the BeiDou pseudo-satellite often has the issue of cycle slips, which makes the user unable to carry out high-precision positioning.
Heng Zhang, Shuguo Pan
doaj +2 more sources
Voice and Position Simultaneous Communication System Based on Beidou Navigation Constellation
Xibei Gongye Daxue Xuebao, 2020 Considering China Beidou has unique two-way communication capability for short messages that are not available in other navigation systems such as GPS, a 600bps vocoder adapted to the short message channel of Beidou is developed.
doaj +2 more sources
An Evaluation of the Beidou Time System (BDT)
Journal of Navigation, 2011 The evaluation of Beidou system time is one of the important tasks in constructing and developing the Beidou satellite navigation system. The evaluation methods based on two-way satellite time and frequency transfer method (TWSTFT) and GPS common-view ...
Wen-hai Jiao +4 more
core +2 more sources
BeiDou Inter-Satellite-Type Bias Evaluation and Calibration for Mixed Receiver Attitude Determination [PDF]
Sensors, 2013 The Chinese BeiDou system (BDS), having different types of satellites, is an important addition to the ever growing system of Global Navigation Satellite Systems (GNSS).
Noor Raziq +2 more
doaj +2 more sources
BeiDou Geostationary Satellite Code Bias Modeling Using Fengyun-3C Onboard Measurements
Sensors, 2017 This study validated and investigated elevation- and frequency-dependent systematic biases observed in ground-based code measurements of the Chinese BeiDou navigation satellite system, using the onboard BeiDou code measurement data from the Chinese ...
Kecai Jiang +4 more
doaj +2 more sources
Polish Maritime Research, 2017 Under the bad sea conditions and weak Beidou navigation signal environment, it is difficult to locate the ship on the sea, and the Beidou navigation system can’t work well.
Su Deliang +3 more
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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