Results 71 to 80 of about 2,562 (200)

Pilot Evaluation of Integrating GLONASS, Galileo and BeiDou with GPS in Araim [PDF]

, 2016
© 2016 Artificial Satellites. In this pilot study, availability of the Advanced Receiver Autonomous Integrity Monitoring (ARAIM) when integrating various combinations of satellite constellations including; Galileo, GLONASS and BeiDou with GPS is ...
El-Mowafy, Ahmed
core   +1 more source

Tracking Loop Distortion of BDS‐3 B1C Signal in Spoofing Scenarios: An Experimental Analysis

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This study established a feeder‐based BDS spoofing experimental platform and uses multi‐correlator tracking to systematically analyse the tracking loop distortion characteristics of BDS‐3 B1C signals under position and time spoofing, comparing differences between narrowband (NB) and wideband (WB) tracking modes.
Bo Jiao, Yue Wang, Weiping Liu, Lan Du, Lundong Zhang   +4 more
wiley   +1 more source

The Analysis of the Ionospheric Radio Occultation Data Coverage for ANCHOR Ionospheric Data Assimilation

Space Weather, Volume 23, Issue 12, December 2025.
Abstract The Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC‐1 and COSMIC‐2) missions provide global observations of atmospheric and ionospheric conditions using Global Navigation Satellite System (GNSS) radio occultation (RO).
Victoriya V. Forsythe, Jan‐Peter Weiss, Irfan Azeem, William Gullotta, Sarah E. McDonald, Katherine A. Zawdie, Emily C. Morgan, Douglas P. Drob   +7 more
wiley   +1 more source

Positioning buried utilities in difficult environments [PDF]

, 2016
Recently an increasing number of underground pipes have been established, particularly in city centres, for different applications such as sewage, electricity, gas, water and drainage.
de Ligt, Huib, Hancock, Craig, Lau, Lawrence, Quan, Yiming, Roberts, Gethin Wyn, Zhang, Penghe   +5 more
core  

Accuracy assessment of Precise Point Positioning with multi-constellation GNSS data under ionospheric scintillation effects [PDF]

, 2018
GPS and GLONASS are currently the Global Navigation Satellite Systems (GNSS) with full 16 operational capacity. The integration of GPS, GLONASS and future GNSS constellations can 17 provide better accuracy and more reliability in geodetic positioning, in
Aquino, Aquino, Bassiri, Blewitt, Brunini, Brunini, Cai, Cai, Chen, Ciraolo, Collins, Conker, De Paula, Estey, Fritsche, Ge, Geng, Hernandes-Pajares, Hoque, Kedar, Laurichesse, Marques, Marques, Silva, Teunissen, Vani, Wanninger, Xu, Zhang, Zhimin   +29 more
core   +3 more sources

Effect of the 1 December 2023 Geomagnetic Storm on SPP Performance in China

Space Weather, Volume 23, Issue 9, September 2025.
Abstract Geomagnetic storms, precipitated by solar phenomena such as coronal mass ejections (CMEs), profoundly disturb the Earth's magnetic field, impacting satellite‐based navigation systems. This study analyzed the effect of a moderate geomagnetic storm on 1 December 2023, on single‐point positioning (SPP) accuracy across various Chinese regions ...
Si Chen, Fengzheng Yu, Hong Yuan, Guang Yang, Kai Fan, Peng Zhang, Yong Wei   +6 more
wiley   +1 more source

China’s dichotomous BeiDou strategy: led by the party for national deployment, driven by the market for global reach

Journal of Contemporary East Asia Studies, 2022
China’s foremost national goal is to become a major space power by 2030. Consequently, President Xi Jinping has made the launch of the BeiDou navigation satellite system (BDS) and promotion of a “BDS global network” a national priority.BDS represents a ...
Rumi Aoyama
doaj   +1 more source

Performance Evaluation of the Dual‐Frequency Ionospheric Free Combination on BDS‐3 Single Point Positioning Accuracy

Engineering Reports, Volume 7, Issue 7, July 2025.
Some stations have slightly larger errors in mid low latitude regions, while others have slightly smaller errors in high latitude regions. By comparing the B1C/B2a and B2b/B3I IFC SPP results of all 84 stations, it was found that the RMSE of all stations with B2b/B3I IFC was greater than that of B1C/B2a. ABSTRACT This article analyzes the BDS Phase III
Xingli Sun, Jinjie Yao
wiley   +1 more source

The direct application and potential indirect contribution of space law for solar radiation modification governance

Review of European, Comparative &International Environmental Law, Volume 34, Issue 1, Page 170-180, April 2025.
Abstract Solar radiation modification (SRM) reflects sunlight back into space and could rapidly cool Earth, potentially reducing the harms of dangerous climate change. Current international law fails to directly and comprehensively address the transboundary, regional and global governance challenges that SRM presents.
Rachel Neef
wiley   +1 more source

Architecture design of BeiDou global navigation signals

Geo-spatial Information Science
Navigation signals play a crucial role in determining the performance and user experience of Global Navigation Satellite System (GNSS). In recent years, GNSSs have been actively modernizing their signal architectures to meet the increasing demand for ...
Shuren Guo, Chengeng Su, Feiren Lv
doaj   +1 more source