Results 101 to 110 of about 11,743 (250)

Investigation of the accuracy of BeiDou, QZSS and QZSS/BeiDou satellites configuration for short, medium and long baselines in the Asia-Pacific regions

open access: yesReports on Geodesy and Geoinformatics
The field of satellite navigation has seen significant advancements due to the fast development of multi-constellation Global Navigation Satellite Systems (GNSS).
Pirti Atinç
doaj   +1 more source

A two-step method to detect broadcast ephemeris unavailable periods caused by BeiDou satellite orbital maneuvers

open access: yesGeodesy and Geodynamics, 2023
The space constellation of the BeiDou navigation satellite system (BDS) is a hybrid constellation containing medium earth orbit (MEO) satellites, geostationary earth orbit (GEO) satellites, and inclined geosynchronous orbit (IGSO) satellites.
Jingjing Wang, Chao Zhou, Zhixuan Sun
doaj  

Multi-GNSS integer ambiguity resolution enabled precise positioning [PDF]

open access: yes, 2015
In this PhD thesis multi-Global Navigation Satellite System (GNSS) positioning results when combining the American Global Positioning System (GPS), Chinese BeiDou Navigation Satellite System (BDS), European Galileo and Japanese Quasi-Zenith Satellite ...
Odolinski, Robert
core  

Optimized Design and Analysis of Offshore Beidou Maritime Foundation Reinforcement System Pseudolite Ranging-Codes

open access: yesPolish 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
doaj   +1 more source

BeiDou Inter-Satellite-Type Bias Evaluation and Calibration for Mixed Receiver Attitude Determination

open access: yesSensors, 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   +1 more source

The Dunhuang chinese sky: a comprehensive study of the oldest known star atlas

open access: yes, 2009
This paper presents an analysis of the star atlas included in the medieval Chinese manuscript (Or.8210/S.3326), discovered in 1907 by the archaeologist Aurel Stein at the Silk Road town of Dunhuang and now held in the British Library.
Bonnet-Bidaud, Jean-Marc   +2 more
core  

gLAB upgrade with BeiDou navigation system signals [PDF]

open access: yes, 2015
The gLAB tool suit is an educational and professional multipurpose GNSS data processing software. It has been developed by gAGE/UPC under a contract of the European Space Agency (ESA). The current version of gLAB allows full GPS data processing with High
Wang, Xiaoli
core  

Estimating Zenith Tropospheric Delays from BeiDou Navigation Satellite System Observations [PDF]

open access: gold, 2013
Aigong Xu   +5 more
openalex   +1 more source

Performance of Ground-Based Global Navigation Satellite System Precipitable Water Vapor Retrieval in Beijing with the BeiDou B2b Service

open access: yesRemote Sensing
The accurate measurement of water vapor is essential for research about and the applications of meteorology, climatology, and hydrology. Based on the BeiDou PPP-B2b service, real-time precipitable water vapor (PWV) can be retrieved with the precise point
Yunchang Cao   +5 more
doaj   +1 more source

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