Results 111 to 120 of about 34,527 (227)
High-latitude artificial aurora using the EISCAT high-gain HF facility [PDF]
, 2002 The EISCAT high-frequency (HF) transmitter facility at Ramfjord, Norway, has been used to accelerate F-region electrons sufficiently to excite the oxygen atoms and nitrogen molecules, resulting in optical emissions at 630, 557.7 and 427.8 nm.
Hagfors, T. +10 more
core
DEDNet: Offshore Eddy Detection and Location with HF Radar by Deep Learning. [PDF]
Sensors (Basel), 2020 Liu F, Zhou H, Wen B.
europepmc +1 more source
The Adelaide MF partial-reflection radar and VHF ST radar [PDF]
, 1986 The microwave frequency (MF) partial-reflection radar ran continuously since November 1983, with data being analyzed in real time. The spaced antenna technique was used routinely to produce a climatology of the mean circulation, atmospheric tides, and ...
Vincent, R. A.
core +1 more source
Journal of Marine Science and EngineeringThis study provides a comprehensive analysis and intercomparison of surface currents, for Galveston Bay and Sabine Lake, Texas, obtained from High-Frequency (HF) radars and SCHISM model.
Cletus O. Ogbodo +5 more
doaj +1 more source
HF Radar Activity in European Coastal Seas: Next Steps toward a Pan-European HF Radar
, 2017 High Frequency Radar (HFR) is a land-based remote sensing instrument offering a unique insight to coastal ocean variability, by providing synoptic, high frequency and high resolution data at the ocean atmosphere interface. HFRs have become invaluable tools in the field of operational oceanography for measuring surface currents, waves and winds, with ...
Rubio Anna +17 more
openaire +2 more sources
Matrix-Monotonic Optimization for MIMO Systems [PDF]
, 2014 For MIMO systems, due to the deployment of multiple antennas at both the transmitter and the receiver, the design variables e.g., precoders, equalizers, training sequences, etc. are usually matrices.
Ma, Shaodan +2 more
core
Ionosphere/microwave beam interaction study [PDF]
A solar power satellite microwave power density of 20mw sq cm was confirmed as the level where nonlinear interactions may occur in the ionosphere, particularly at 100 km altitude.
Duncan, L. M., Gordon, W. E.
core +1 more source
Communication system for a tooth-mounted RF sensor used for continuous monitoring of nutrient intake [PDF]
, 2019 In this Thesis, the communication system of a wearable device that monitors the user’s diet is studied. Based in a novel RF metamaterial-based mouth sensor, different decisions have to be made concerning the system’s technologies, such as the power ...
Zufía Mier, Pablo
core +1 more source
The European HF Radar inventory
, 2016 The inventory of the different HF radar systems operating in Europe has been gathered thanks to the survey launched by the EuroGOOS HFR Task Team, in the framework of INCREASE and JERICO-NEXT projects. We are very grateful to all the people who kindly provided the information of their radar and related activities.
Mader, Julien +10 more
openaire +1 more source
Optimal trajectory generation in ocean flows [PDF]
, 2004 In this paper it is shown that Lagrangian Coherent Structures (LCS) are useful in determining near optimal trajectories for autonomous underwater gliders in a dynamic ocean environment.
Inanc, Tamer +2 more
core +1 more source