Results 31 to 40 of about 95,952 (309)

Effects of high-latitude atmospheric gravity wave disturbances on artificial HF radar backscatter [PDF]

, 2006
International audienceObservations of HF radar backscatter from artificial field-aligned irregularities in an ionosphere perturbed by travelling disturbances due to atmospheric gravity waves are presented.
Tim K. Yeoman (7583066), A. Senior, M. J. Kosch (7595327), I. W. McCrea, M. T. Rietveld (7594184), Rietveld, M. T., Senior, A., T. K. Yeoman, I. W. McCrea (7594871), M. T. Rietveld, Kosch, M. J., M. J. Kosch, A. Senior (3255282), McCrea, I. W., Yeoman, T. K.   +14 more
core   +1 more source

Introduction to High-Frequency Radar: Reality and Myth [PDF]

Oceanography, 1997
The article of record as published may be found at https://www.jstor.org/stable ...
Paduan, Jeffrey D., Graber, Hans C.
openaire   +2 more sources

Iterative 2D sparse signal reconstruction with masked residual updates for automotive radar interference mitigation

EURASIP Journal on Advances in Signal Processing, 2022
Compressive sensing has attracted considerable attention in automotive radar interference mitigation. However, these algorithms usually cannot be applied directly to commercial automotive radar as most of them are computationally intense.
Shengyi Chen, Philipp Stockel, Jalal Taghia, Uwe Kühnau, Rainer Martin   +4 more
doaj   +1 more source

Flat-Plate PHP with Gravity-Independent Performance and High Maximum Thermal Load

Energies, 2023
In many energy-related applications, components with high heat loads, such as power electronics, play an important role. Pulsating heat pipes (PHPs) are an effective solution to deal with the increasing heat load of these components.
Markus Winkler, Marc Vergez, Andreas Mahlke, Mathias Gebauer, Phillip Müller, Christoph Reising, Kilian Bartholomé, Olaf Schäfer-Welsen   +7 more
doaj   +1 more source

RADAR ON RAIA: High frequency radars in the RAIA Observatory

, 2021
No
Piedracoba Varela, Silvia, Allen-Perkins, Silvia, Ayensa Aguirre, Miren Garbiñe, Álvarez Fanjul, Enrique, Basañez Mercader, Ana María, Almeida Costa, Alexandre, dos Santos Fernandes, Carlos Alberto, Gil Coto, Miguel, Lorente Jiménez, Pablo, Matos, José, Montero Vilar, Pedro, Oliveira, Lino, Pérez Muñuzuri, Vicente, Redondo Caride, Waldo, Rosón Porto, Gabriel, Gil Ruíz de la Serna, María Isabel, Ribeiro, Catarina, Seca, J., Torres López, Silvia, Varela Benvenuto, Ramiro Alberto, Vázquez Fernández, Marta, Vila Taboada, Begoña, Ríos Viqueira, José Ramón   +22 more
openaire   +2 more sources

Signal design and processing for noise radar

EURASIP Journal on Advances in Signal Processing, 2022
An efficient and secure use of the electromagnetic spectrum by different telecommunications and radar systems represents, today, a focal research point, as the coexistence of different radio-frequency sources at the same time and in the same frequency ...
Gaspare Galati, Gabriele Pavan, Christoph Wasserzier   +2 more
doaj   +1 more source

Radar matched filtering using the fractional fourier transform [PDF]

, 2010
-A matched filter is the optimal linear filter for maximizing the signal to noise ratio (SNR) in the presence of additive noise. Matched filters are commonly used in radar systems where the transmitted signal is known and may be used as a replica to be ...
Clemente, Carmine, S.A. Elgamel, C. Clemente, Elgamel, Sherif A.E.H., Soraghan, J.J., J.J. Soraghan   +5 more
core   +1 more source

Spectral analysis in high frequency radar oceanography [PDF]

, 2006
High Frequency radar systems provide a unique opportunity to measure evolving littoral oceanic dynamics at high temporal and spatial resolution. Backscattered electromagnetic signals from ocean waves are modulated by Bragg resonant scattering.
Middleditch, Andrew
core  

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Capabilities and challenges of passive radar systems based on broadband low‐Earth orbit communication satellites

IET Radar, Sonar & Navigation
Recently, several constellations of broadband low‐Earth orbit communication satellites, such as Starlink or OneWeb, have started to be deployed to provide global internet access.
Rodrigo Blázquez‐García, Diego Cristallini, Martin Ummenhofer, Viktor Seidel, Jörg Heckenbach, Daniel O’Hagan   +5 more
doaj   +1 more source