Results 91 to 100 of about 51,700 (277)

Jamming Effect Analysis of Two Chinese GNSS BeiDou-II Civil Signals [PDF]

, 2012
Threats of electronic warfare, especially to global positioning systems (GPSs), have been rapidly increasing. The development of the Chinese navigation satellite system BeiDou has been extended to a global navigation satellite system (GNSS).
Baek, Jeehyeon, Kim, Sun Yong, Yoo, Seungsoo   +2 more
core   +2 more sources

Constellation Design of the Beidou satellite navigation system and performance simulation [PDF]

Proceedings of 2012 National Conference on Information Technology and Computer Science, 2012
To improve the positioning accuracy and reliability of Beidou ,an analysis of the Beidou satellite navigation system has been performed; combination of technical experience of the foreign global satellite navigation system and the current release of technical information, we have designed Beidou satellite navigation system constellation, by satellite ...
Xiaomeng Wang, Ruihua Liu
openaire   +2 more sources

A Special Collection on Hydrogeodesy in a New Era of Satellites for Better Understanding and Management of Water Resources

Water Resources Research, Volume 61, Issue 9, September 2025.
Abstract Hydrogeodesy is the discipline that measures the Earth's solid and aquatic surfaces and gravity field from space to study water resources and their changes over time. The Special Collections on Hydrogeodesy: Understanding Changes in Water Resources Using Space Geodetic Observations, in Water Resources Research (WRR) and Geophysical Research ...
Fernando Jaramillo, Fabrice Papa, Jida Wang, Shimon Wdowinski, Georgia Destouni, James Famiglietti   +5 more
wiley   +1 more source

Review of code and phase biases in multi-GNSS positioning [PDF]

, 2016
A review of the research conducted until present on the subject of Global Navigation Satellite System (GNSS) hardware-induced phase and code biases is here provided. Biases in GNSS positioning occur because of imperfections and/or physical limitations in
A Al-Shaery, A Leick, A Tetewsky, Anna B. O. Jensen, B Hoffman-Wellenhof, C Cai, C Deng, D Laurichesse, D Odijk, E Sardon, GE Lanyi, Gunnar Hedling, H He, J Chen, J Geng, J Kouba, J Paziewski, J Tegedor, J-M Sleewaegen, JF Zumberge, JM Dow, L Wanninger, M Ge, Martin Håkansson, Milan Horemuz, P Collins, P Teunissen, PJG Teunissen, PJG Teunissen, S Banville, S Banville, S Chuang, S Gleason, W Bertiger, X Li, Y Gao   +35 more
core   +1 more source

Seasonal Variation of Daytime Electron Density Irregularity Distributions in the Bottom and Top Sides of the Low Latitude F Region

Journal of Geophysical Research: Space Physics, Volume 130, Issue 8, August 2025.
Abstract The occurrence rate of daytime electron density irregularities in the low‐latitude F region around the solar minimum exhibits different seasonal patterns in the Northern Asian sector (near 110°E longitude), depending on the data set used. This study examines this discrepancy using Beidou total electron content (TEC) data and vertical TEC ...
Hoang Nguyen, Young‐Sil Kwak, Hyosub Kil, Woo Kyoung Lee   +3 more
wiley   +1 more source

Space-Time Reference with an Optical Link

, 2015
We describe a method for realizing a high-performance Space-Time Reference (STR) using a stable atomic clock in a precisely defined orbit and synchronizing the orbiting clock to high-accuracy atomic clocks on the ground.
Berceau, Paul, Hollberg, Leo, Kahn, Joseph M., Taylor, Michael   +3 more
core   +1 more source

Application of BeiDou Navigation Satellite System in Anti-Drowning System

IOP Conference Series: Materials Science and Engineering, 2018
Due to the high frequent drowning accident, a new type of drowning-preventing device established on the base ofBeiDou Navigation Satellite System, using the compatibility of GPS tech, GSM, GPRS and other Internet of Things technology as well as Vital Signs Detection technology is designed.
Chen Minghao, Sun Tianran, Li Wenrui, Lei Yong, Gou Wensha, Qin Yong   +5 more
openaire   +2 more sources

Deformation and Sediment Provenance of the Forearc Basin in the Central Andes of Southern Peru

Tectonics, Volume 44, Issue 8, August 2025.
Abstract The linkages between the development of the forearc regions and the accompanying retroarc in contractional mountain belts remain unclear. In the central Andes of southern Peru, new results constrain the timing of deformation and the provenance of forearc basin fill during Cenozoic mountain building.
Brenden J. Britt, Nicholas D. Perez
wiley   +1 more source

Implementation of a GNSS-R payload based on software defined radio for the 3CAT-2 mission [PDF]

, 2016
©2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Amézaga Sarries, Adrià, Camps Carmona, Adriano José, Carreno-Luengo, Hugo, Hyuk, Park, Olivé Muñiz, Roger   +4 more
core   +2 more sources

Consistency of MGEX Orbit and Clock Products

Engineering, 2020
The analysis centers of the Multi-GNSS Pilot Project of the International GNSS Service provide orbit and clock products for the global navigation satellite systems (GNSSs) Global Positioning System (GPS), GLONASS, Galileo, and BeiDou, as well as for the ...
Peter Steigenberger, Oliver Montenbruck
doaj   +1 more source