Results 51 to 60 of about 820,012 (137)

A New Generation of HF Surface Wave Radar

open access: yes
International audienceA primary function of a radar is to monitor a given area. For surface radars, the monitored area is limited by the horizon due to the Earth's curvature. To overcome this limitation, several concepts of HF Over The Horizon Radar (OTH-
Brouard, Philippe   +5 more
core   +1 more source

Nostradamus: The radar that wanted to be a seismometer

open access: yes, 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   +7 more
core   +1 more source

Low training volume adaptive processing in HF skywave radar

open access: yes, 2008
Adaptive processing in the HF radar environment suffers from the paucity of appropriate training data relative to the dimension of the required spatial filters.
Abramovich, Y.   +3 more
core   +1 more source

Joint transient and CW external-noise mitigation in heavy clutter

open access: yes, 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   +5 more
core   +1 more source

Fuzzy Functional Dependencies as a Method of Choice for Fusion of AIS and OTHR Data. [PDF]

open access: yesSensors (Basel), 2019
Mohamed Mostafa MAR   +4 more
europepmc   +1 more source

Application of HF radar to observation of surface current fields in the Cheju Strait, Korea

open access: yes, 2012
To observe the surface current fields in the Cheju Strait, a pair of SeaSonde high frequency (HF) radar of 13 MHz was installed at two sites of Cheju-do (Aewol and Kimyung)in late December 2011 and operated normally from mid February 2012.
정경태   +4 more
core  

Stacked Autoencoders for Outlier Detection in Over-the-Horizon Radar Signals. [PDF]

open access: yesComput Intell Neurosci, 2017
Protopapadakis E   +5 more
europepmc   +1 more source

Coordinated optical and radar observations of ionospheric pumping for a frequency pass through the second electron gyroharmonic at HAARP [PDF]

open access: yes, 2007
On 4 February 2005, the High-frequency Active Auroral Research Program (HAARP) facility was operated in O and X mode while pointing into the magnetic zenith to produce artificial optical emissions in the ionospheric F layer. The pump frequency was set to
Senior, Andrew   +7 more
core  

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