Results 291 to 300 of about 46,320 (319)
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Plasma frequency selective surface for GNSS applications
2017 25th Telecommunication Forum (TELFOR), 2017We propose a low-cost and reconfigurable plasma frequency selective surface (PFSS) with fluorescent lamps for Global Navigation Satellite System (GNSS) applications. Although many antenna topologies exist for broadband operation, antennas with plasma frequency selective surfaces are limited and offer certain advantages. Especially for GNSS applications,
Yegin K., Yigit O., Ozturk Y., Akkaya I.
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GNSS Reflectometry and Applications
2017© Springer International Publishing AG 2018. When positioning with GNSS, multipath signal is a reflected GNSS signal that is a nuisance and as such needs to be eliminated. Whereas this reflected signal on the one hand is a nuisance for positioning, for environmental monitoring purposes, it could be useful in monitoring sea-wind retrieval, seawater ...
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Antennas for multi-mode GNSS applications
2012 IEEE Asia-Pacific Conference on Antennas and Propagation, 2012This paper introduces multi-mode antennas for an integrated GNSS receiver, covering GPS, Glonass, Compass and Galileo systems. It presents several kinds of multi-mode GNSS antennas, including microstrip and helix antennas. In each part, some practical and novel designs are presented, such as multi-layer microstrip antennas, slotted patch antennas ...
Xiaodong Chen +3 more
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Most promising markets for GNSS applications
Air & Space Europe, 1999Abstract This paper briefly reviews currently available market data for GNSS in the European region and expands further on telematic applications for the most promising market segment i.e. the road transport market. It then outlines the performance of the navigation infrastructure required to operate these applications and concludes with ...
Jean-Louis Lavroff, Pascal Campagne
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New antenna design for GNSS application
2015 International Siberian Conference on Control and Communications (SIBCON), 2015A new radiating element design of the slot stripline leaky-wave antennas with right-hand circular polarization is proposed for high-accuracy positioning using Global satellite navigation signals (GNSS) GPS (L1/L2) and GLONASS (L1/L2/L3). Technical characteristics of the antenna with the new radiator have been studied.
Vladimir N. Shepov +2 more
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GNSS - From simulation to application
Proceedings of 5th International Conference on Recent Advances in Space Technologies - RAST2011, 2011This paper presents applications of GNSS simulation from system analysis to application development. Many examples are given where the the Galileo System Simulation Facility (GSSF) has been used. Therefore a brief introduction of the GSSF is given including the validation approach used, its use in system analysis, application development support, GNSS ...
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Applications of GNSS in West Africa
2009 IEEE International Geoscience and Remote Sensing Symposium, 2009The applications of GNSS in West Africa are enhanced by the objectives of the African Geodetic Reference Frame (AFREF) which is to establish an unified reference frame through the use of Space Geodesy Techniques, GNSS in particular, to tie various national and regional reference networks of Africa.
Dagogo M.J. Fubara +1 more
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Backward smoothing for precise GNSS applications
Advances in Space Research, 2015Abstract The Extended Kalman filter is widely used for its robustness and simple implementation. Parameters estimated for solving dynamical systems usually require certain time to converge and need to be smoothed by a dedicated algorithms. The purpose of our study was to implement smoothing algorithms for processing both code and carrier phase ...
Pavel Vaclavovic, Jan Dousa
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GNSS-based trajectories for demanding applications
2009 6th Workshop on Positioning, Navigation and Communication, 2009The Institute of Navigation and Satellite Geodesy of the Graz University of Technology is involved in many projects and developments to determine GNSS-based trajectories for demanding applications. Examples demonstrating the capabilities and limits of GNSS-based positioning under detrimental conditions are: positioning and guidance of visually impaired
P. Hafner +5 more
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GNSS reflectometryfor land surfa CES applications
2018 4th International Conference on Advanced Technologies for Signal and Image Processing (ATSIP), 2018The land surface conditions play an essential role in water and carbon cycles understanding. During the last thirty years, different approaches, based on microwave remote sensing have been developed to estimate surface parameters, describing soil and vegetation cover.
Mehrez Zribi, Pascal Fanise
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