Results 71 to 80 of about 18,768,627 (118)
THE DEVELOPMENT OF NAVIGATION SYSTEMS IN CIVIL AVIATION
Научный вестник МГТУ ГА, 2017 The article describes the history of navigation systems formation, such as "Cicada" system, which at that time could compete with the US "Transit", European, Chinese Beidou navigation system and the Japanese Quasi-Zenit.The detailed information about ...
A. S. Stepanenko
doaj
Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.Abstract High‐precision regional ionospheric correction products are essential for achieving accurate and fast‐convergence solutions in Precise Point Positioning Real‐Time Kinematic (PPP‐RTK). For users in low‐ and middle‐latitudes, PPP‐RTK server narrow‐lane (NL) ambiguity resolution (AR) typically requires more than 10 min, which largely affects the ...
Pan Li +6 more
wiley +1 more source
Comparative Accuracy Analysis of GNSS Observation for Positioning with A Combination of GPS, GLONASS, and BEIDOU Satellite [PDF]
, 2019 GNSS (Global Navigation Satellite System) is a term used for the entire global navigation satellite system that already operate or are in the planning. some of them namely GPS, GLONASS, and BeiDou. Errors due to less powerful satellite geometry when data
Khomsin, Khomsin; Departemen Teknik Geomatika Institut Teknologi Sepuluh Nopember +2 more
core +1 more source
An Evaluation Method on the Service Range of Reference Base Station in Assisted Beidou Navigation
工程科学与技术, 2012 :In order to improve the performance of mobile positioning, enhance the Beidou navigation system application ability, reduce the investment cost of mobile network, an evaluation method of reference base station service range in assisted Beidou navigation
Zhang Guang-Hua +2 more
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Unconstrained GNSS Water Vapor Tomography With Real Data and LEO Augmentation
Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.Abstract The availability of four complete GNSS constellations (GPS, GLONASS, BeiDou and Galileo) offers, for the first time, the possibility of performing water vapor tomographic inversions that do not rely on external data. A tomographic model that includes no external constraints and requires no first guess and no virtual observations is described ...
P. M. A. Miranda +3 more
wiley +1 more source
Beidou: China’s new satellite navigation system
, 2015 On 28 October 2014, just three weeks before Prime Minister Abbott and PRC President Xi Jinping signed an agreement in Hobart promising ‘increased collaboration in Antarctic science’, the Chinese official newsagency Xinhua announced that China
Geoff Wade
core
SensorsTo meet the urgent need for high-precision ranging and large-capacity transmission in the current BeiDou-3 inter-satellite link system, this paper proposes a novel two-way measurement method based on Co-frequency Co-time Full Duplex (CCFD) system.
Hao Feng +6 more
doaj +1 more source
A Practical Adaptive Clock Offset Prediction Model for the Beidou-2 System
Remote Sensing, 2019 The predicted navigation satellite clock offsets are crucial to support real-time global navigation satellite system (GNSS) precise positioning applications, especially for those applications difficult to access the real-time data stream, such as the low
Beizhen Xu +5 more
doaj +1 more source
Combined GPS and BeiDou instantaneous RTK positioning [PDF]
, 2014 The Chinese BeiDou-2/COMPASS Navigation Satellite System has attained regional operational status and is expected to reach the same level of popularity as GPS once it has reached its full constellation.
Robert Odolinski +5 more
core +1 more source
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 +1 more source