Results 61 to 70 of about 439 (181)

High frequency surface wave radar (HFSWR) simulator

, 2007
110 p.High Frequency (HF) - Radar ,also known as Over-The-Horizon (OTH) Radar is able to detect targets that are over the horizon up to a few hundreds kilometers, beyond the range of a conventional radar.
Teo, Mia Koon
core   +1 more source

Validating precipitation forecasts using remote sensor synergy: A case study approach

, 2010
Several types of remote sensing data are applied synergistically to evaluate the chain of microphysical processes leading to precipitation in a high-resolution numerical weather prediction model.
Yen, Wenchie, Wenchieh Yen, Martin Hagen, Anja Hühnerbein, Marc Schröder, Schröder, Marc, George Craig, Crewell, Susanne, Jürgen Fischer, Mario Mech, Axel Seifert, Michael Baldauf, Seifert, Axel, Hagen, Martin, Craig, George, Pfeifer, Monika, Reinhardt, Thorsten, Monika Pfeifer, Hünerbein, Anja, Fischer, Jürgen, Susanne. Crewell, Hühnerbein, Anja, Baldauf, Michael, Yen, Wenchieh, Thorsten Reinhardt, Mech, Mario   +25 more
core   +1 more source

Uso delle forme d'onda FMCW nei sistemi radar OTH

In questa tesi verrà trattato il principio di funzionamento dei radar OTH con particolare riferimento ad un tipo di modulazione dell’onda trasmessa (Frequency Modulated Continuous Wave, che per semplicità in seguito scriveremo come FMCW).
Pirelli, Gabriele
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Effect of ray and speed perturbations on ionospheric tomography by over-the-horizon radar: A new method

, 2014
International audienceMost recent methods in ionospheric tomography are based on the inversion of the total electron content measured by ground-based GPS receivers.
Wieczorek M, Roy C, Boschi L, Boschi, Lapo, Mark Wieczorek, Corinna Roy, Jean‐Philippe Molinié, Lapo Boschi, Molinié, Jean-Philippe, Moline JP, Occhipinti, Giovanni, A. Wieczorek, Mark, Giovanni Occhipinti, Roy, Corinna, Occhipinti G   +14 more
core   +1 more source

Nostradamus: The radar that wanted to be a seismometer

, 2010
International audienceSurface waves emitted after large earthquakes are known to induce, by dynamic coupling, atmospheric infrasonic waves propagating upward through the neutral and ionized atmosphere.
Occhipinti, Giovanni, Farges, Thomas, Philippe Lognonné, Giovanni Occhipinti, Philippe Dorey, Dorey, Philippe, Lognonné, Philippe, Thomas Farges   +7 more
core   +1 more source

A Frequency Management Technique for an HF-OTH Skywave Radar

Questa tesi ha lo scopo di illustrare una tecnica di selezione delle frequenze in un radar HF-OTH di tipo ...
TOMEI, SONIA
core  

HF Over-the-horizon radar system performance analysis [PDF]

, 2007
n the Chinese OTH-B radar system are to investigate the Chinese surveillance capabilities.Republic of China (Taiwan) Navy author.http://archive.org/details ...
Liu, Bin-Yi
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Joint transient and CW external-noise mitigation in heavy clutter

, 2008
Copyright © 2008 IEEEA new method for interference mitigation which efficiently combines continuous-wave (CW) external-noise mitigation with transient and impulsive-noise mitigation in high-frequency over-the-horizon (HF OTH) radars is proposed in this ...
P. Turcaj, Turcaj, P., Abramovich, Y., N.K. Spencer, Spencer, N., Y.I. Abramovich   +5 more
core   +1 more source

Adaptive waveform algorithms for HF-OTH skywave radar

, 2011
Since 1960, Over the Horizon radars have been studied; they fall into two types: Sky-wave and Surface-wave radar systems, classified as a function of electromagnetic waves propagation mode. The HF-OTH skywave performance strongly depends on several space-
SAVERINO, ANNA LISA
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OTH Skywave MIMO signal model and target detection in presence of multipath

, 2014
HF Skywave radars exploit the refractive properties of the ionosphere to reach distances beyond the horizon allowing for the surveillance of very large areas.
TOMEI, SONIA, Berizzi, F., F. Berizzi, Tomei, S., C. J. Coleman, MARTORELLA, MARCO, M. Martorella, BERIZZI, FABRIZIO, S. Tomei, Coleman, C. J., Martorella, M.; id_orcid   +10 more
core   +1 more source