Results 71 to 80 of about 109,915 (264)
GNSS. Romværs påvirkning på GNSS
, 2021 Global Navigation Satellite System (GNSS) blir mer og mer tatt i bruk i ulike samfunnssektorer i den hensikt å benytte seg av PNT (Position Navigation Time) informasjon. GNSS har som mange andre systemer feil og sårbarheter. Flertallet av feilene og sårbarhetene er bundet opp mot det svake satellitt signalet.
Lerø, Nils-Endre Anglevik +1 more
openaire +1 more source
Impacts of inter-satellite links on the ECOM model performance for BDS-3 MEO satellites
Satellite NavigationInter-satellite link (ISL) plays an essential role in current and future Global Navigation Satellite System (GNSS). In this study, we investigate the impact of ISL observations on precise orbit determination for BeiDou-3 Navigation Satellite System (BDS ...
Chao Yang +4 more
doaj +1 more source
Remote Sensing, 2019 The Chinese BeiDou Navigation Satellite System has provided a global-coverage service since 27 December 2018. Eighteen BD3 MEO satellites have been launched into space during 2017 and 2018.
Xiaolong Xu +3 more
doaj +1 more source
Sensitivity of GNSS-R spaceborne observations to soil moisture and vegetation [PDF]
, 2016 Global navigation satellite systems-reflectometry (GNSS-R) is an emerging remote sensing technique that makes use of navigation signals as signals of opportunity in a multistatic radar configuration, with as many transmitters as navigation satellites are
Camps Carmona, Adriano José +6 more
core +2 more sources
GNSS Time Synchronization in Vehicular Ad-Hoc Networks: Benefits and Feasibility [PDF]
Hasan, Khondokar Fida, Yanming Feng, and Yu-Chu Tian. "GNSS Time
Synchronization in Vehicular Ad-Hoc Networks: Benefits and Feasibility." IEEE
Transactions on Intelligent Transportation Systems (2018), 2018 Time synchronization is critical for the operation of distributed systems in networked environments. It is also demanded in vehicular ad-hoc networks (VANETs), which, as a special type of wireless networks, are becoming increasingly important for emerging cooperative intelligent transport systems.
arxiv +1 more source
EURASIP Journal on Advances in Signal Processing, 2014 This special issue publishes several innovative ideas, methods, and applications in GNSS remote sensing, especially in GNSS-R. The issue comprises six research papers of both theoretical studies and practice, and one review article. The topics investigated include sea level measurement, snow depth estimation, snow water equivalent estimation, soil ...
Markus Markgraf +5 more
openaire +2 more sources
sUAS Swarm Navigation using Inertial, Range Radios and Partial GNSS [PDF]
, 2019 Small Unmanned Aerial Systems (sUAS) operations are increasing in demand and complexity. Using multiple cooperative sUAS (i.e. a swarm) can be beneficial and is sometimes necessary to perform certain tasks (e.g., precision agriculture, mapping ...
Huff, Joel +2 more
core +1 more source
Deep Learning of GNSS Acquisition
Sensors, 2023 Signal acquisition is a crucial step in Global Navigation Satellite System (GNSS) receivers, which is typically solved by maximizing the so-called Cross-Ambiguity Function (CAF) as a hypothesis testing problem. This article proposes to use deep learning models to perform such acquisition, whereby the CAF is fed to a data-driven classifier that outputs ...
Parisa Borhani-Darian +3 more
openaire +3 more sources
Tightly Coupled GNSS and Vision Navigation for Unmanned Air Vehicle Applications [PDF]
, 2005 This paper explores the unique benefits that can be obtained from a tight integration of a GNSS sensor and a forward-looking vision sensor. The motivation of this research is the belief that both GNSS and vision will be integral features of future UAV ...
O'Shea, Peter +2 more
core +1 more source
Real-time geophysical applications with Android GNSS raw measurements [PDF]
, 2019 The number of Android devices enabling access to raw GNSS (Global Navigation Satellite System) measurements is rapidly increasing, thanks to the dedicated Google APIs.
Fortunato, Marco +2 more
core +1 more source