Results 41 to 50 of about 102,104 (203)

The Implementation of a Public-Private Partnership for Galileo: Comparison of Galileo and Skynet 5 with Other Projects [PDF]

open access: yes, 2021
Galileo, Europe\u27s global navigation satellite system, represents a major public infrastructure offering numerous advantages for civilian users worldwide.
Bertran, Xavier, Vidal, Alexis
core   +1 more source

GNSS Receiver-Related Pseudorange Biases: Characteristics and Effects on Wide-Lane Ambiguity Resolution

open access: yesRemote Sensing, 2021
Satellite chip shape distortions lead to signal tracking errors in pseudorange measurements, which are related to the receiver manufacturers, called receiver-related pseudorange biases. Such biases will lead to adverse effects for differential code bias (
Lingyue Cheng   +4 more
doaj   +1 more source

Introducing Relativity in Global Navigation Satellite Systems [PDF]

open access: yesAnnalen Phys.16:258-273,1997, 2005
Today, the Global Navigation Satellite Systems, used as global positioning systems, are the GPS and the GLONASS. They are based on a Newtonian model and hence they are only operative when several relativistic effects are taken into account. The most important relativistic effects (to order 1/c^2) are: the Einstein gravitational blue shift effect of the
arxiv   +1 more source

Instantaneous GPS/Galileo/QZSS/SBAS Attitude Determination: A Single-Frequency (L1/E1)Robustness Analysis under Constrained Environments [PDF]

open access: yes, 2014
The augmentation of new global navigation satellite systems (GNSS) to existing GPS enhances the availability of satellite based positioning, navigation, and timing (PNT) solutions.
Nadarajah, Nandakumaran   +1 more
core   +1 more source

Combining GPS, BeiDou, and Galileo Satellite Systems for Time and Frequency Transfer Based on Carrier Phase Observations

open access: yesRemote Sensing, 2018
The carrier-phase (CP) technique based on the Global Navigation Satellite System (GNSS) has proved to be a useful spatial tool for remote and precise time transfer. In order to improve the robustness and stability of the time transfer solution for a time
Pengfei Zhang   +4 more
semanticscholar   +1 more source

Recent Advancement on the Use of Global Navigation Satellite System-Based Positioning for Intelligent Transport Systems [Guest Editorial]

open access: yesIEEE Intelligent Transportation Systems Magazine, 2020
The articles in this special section focus on recent advancements on the use of the global navigation satellite system (GNSS)-based positioning for intelligent transport systems.
F. Dovis   +4 more
semanticscholar   +1 more source

Europejskie programy GNSS na rynku globalnych systemów nawigacyjnych

open access: yesPrace Komisji Geografii Przemysłu Polskiego Towarzystwa Geograficznego, 2009
The study includes the description of development conditions for the satellite navigation programme Galileo. Its also includes some aspects of the Galileo programme accomplishment, especially its influence on the integration process in Europe and ...
Witold Warcholik
doaj   +1 more source

Assessing the Performance of Multi-GNSS PPP-RTK in the Local Area

open access: yesRemote Sensing, 2020
The benefits of an increased number of global navigation satellite systems (GNSS) in space have been confirmed for the robustness and convergence time of standard precise point positioning (PPP) solutions, as well as improved accuracy when (most of) the ...
Hongyang Ma   +4 more
doaj   +1 more source

SAW Filter Modelling in Matlab for GNSS Receivers [PDF]

open access: yes, 2013
Satellite navigation has enabled a great amount of new application for many users, but a lot of limitations have been observed regarding precision and integrity of navigation signals. Overall signals of different navigation systems (GPS, GALILEO, GLONASS
Abbas, Syed Haider   +3 more
core   +2 more sources

Drones and global navigation satellite systems: current evidence from polar scientists

open access: yesRoyal Society Open Science, 2020
Aerial unmanned vehicles, so-called drones, present a paradigm shift away from the long-term use by scientists of manned aeroplanes and helicopters. This is evident from the number of research articles that focus on data obtained with drones.
I. Sheridan
semanticscholar   +1 more source

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