Results 51 to 60 of about 13,896,765 (214)
Вестник КазНУ. Серия математика, механика, информатика, 2020 Nowadays, global navigation satellite systems are widely used to determine the location of various objects with an accuracy of meters. However, there are a number of industries that require high navigation accuracy, for example, for a satellite geodetic ...
M.M. Moldabekov +4 more
doaj +1 more source
Evolution of Maritime GNSS and RNSS Performance Standards
Remote Sensing, 2022 The primary means for electronic position fixing in use in contemporary maritime transport are shipborne GPS (Global Positioning System) receivers or DGPS (Differential GPS) receivers.
Paweł Zalewski +2 more
doaj +1 more source
Integrating Image Segmentation and Deep Learning to Improve Radio Frequency Propagation Models
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT This paper proposes a multi‐sensor approach to improve radio frequency (RF) propagation models, which play a key role in the rapidly expanding field of connected vehicle technology. Focusing on the 1‐ to 20‐GHz frequency range, which is critical for both satellite‐to‐vehicle and base station‐to‐vehicle communications, our study introduces a ...
Jonathan Israel +2 more
wiley +1 more source
GNSS Satellite Orbit Validation Using Satellite Laser Ranging [PDF]
, 2013 With a total of four new regional and global navigation sa tellite systems that have launched first satellites or even started an operational serv ice, the GNSS landscape has experienced major changes in recent years.
Steigenberger, Peter +2 more
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Long‐Term Propagation Measurements in Madrid in a Q‐Band Satellite‐to‐Earth Link
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT The Q/V band (40/50 GHz) is gaining interest as satellite operators will need larger bandwidth to be able to provide their services, which are experiencing an increasingly high demand. An accurate characterization of the satellite‐to‐Earth propagation channel is of paramount importance to guarantee a high level of quality of service, by ...
Domingo Pimienta‐del‐Valle +3 more
wiley +1 more source
Integrity concepts for future maritime Ground Based Augmentation Systems [PDF]
, 2009 Global Navigation Satellite Systems (GNSS) require augmentation to achieve integrity and accuracy performance for high-precise safety of life applications. The current standard maritime GNSS augmentation system is a differential GPS (DGPS) beacon system,
Minkwitz, David +4 more
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Научный вестник МГТУ ГАIntegration of the resulting output signals of the global navigation satellite system (GNSS) and the inertial navigation system (INS) is designed to ensure reliable, safe and stable performance of the aircraft navigation system.
A. S. Zasukhin +2 more
doaj +1 more source
Tracking Post‐Consumer Packaging Plastics With Global Positioning Systems: Pilot Study in Malaysia
Sustainable Development, EarlyView.ABSTRACT Landfilling and the mismanagement of packaging plastic waste pose significant challenges in developing countries, especially in Southeast Asia. There is an empirical gap in plastic waste management data, which is largely handled by informal players despite established municipal solid waste collection systems.
Shafeeq Ahmed Syed Ali +4 more
wiley +1 more source
A validated 3D point‐cloud analysis workflow for the creation of seagrass canopy height models
Methods in Ecology and Evolution, EarlyView.Abstract Seagrasses support highly productive ecosystems in both temperate and tropical waters and provide essential ecosystem services. Despite their importance, the vertical structure of seagrasses (i.e. the canopy) remains poorly characterised at the microscale, even though it is a strong predictor of ecological processes that influence both ...
Daniele Ventura
wiley +1 more source
Simulation of Multi-element Antenna Systems for Navigation Applications [PDF]
, 2007 The application of user terminals with multiple antenna inputs for use with the global satellite navigation systems like GPS and Galileo becomes more and more attraction in last years.
Denks, Holmer +3 more
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