Results 51 to 60 of about 5,383 (243)

First-order Sea Clutter Modeling and Simulation of High Frequency Passive Radar

Leida xuebao, 2015
High Frequency (HF) passive radar is a typical bistatic radar, and the modeling and simulation of sea clutter in bistatic radar are worth researching for HF passive radar.
Cheng Feng, Zeng Qing-ping, Gong Zi-ping
doaj   +1 more source

Simultaneous HF measurements of E- and F-region Doppler velocity at large flow angles [PDF]

, 2004
International audienceData collected by the CUTLASS Finland HF radar are used to illustrate the significant difference between the cosine component of the plasma convection in the F-region and the Doppler velocity of the E-region coherent echoes observed
Koustov, A. V., Makarevitch, R. A., F. Honary, Honary, F., R. A. Makarevitch, A. V. Koustov   +5 more
core   +1 more source

Validation of Clyde River SuperDARN radar velocity measurements with the RISR-C incoherent scatter radar [PDF]

Annales Geophysicae, 2018
The study considers simultaneous plasma velocity measurements in the eastward direction carried out by the Clyde River (CLY) Super Dual Auroral Radar Network (SuperDARN) high-frequency (HF) radar and Resolute Bay (RB) incoherent scatter radar – Canada ...
A. Koustov, R. Gillies, P. Bankole
doaj   +1 more source

Track Prediction for HF Radar Vessels Submerged in Strong Clutter Based on MSCNN Fusion with GRU-AM and AR Model

Remote Sensing, 2021
High-frequency (HF) surface-wave radar has a wide range of applications in marine monitoring due to its long-distance, wide-area, and all-weather detection ability.
Ling Zhang, Jingzhi Zhang, Jiong Niu, Q. M. Jonathan Wu, Gangsheng Li   +4 more
doaj   +1 more source

An interhemispheric, statistical study of nightside spectral width distributions from coherent HF scatter radars [PDF]

, 2002
International audienceA statistical investigation of the Doppler spectral width parameter routinely observed by HF coherent radars has been conducted between the Northern and Southern Hemispheres for the nightside ionosphere.
Milan, S. E., N. Sato, Woodfield, E.E., Lester, M., M. Lester, N. Sato (7606136), Milan, S.E., M. Lester (7589660), K. Hosokawa, S. E. Milan, K. Hosokawa (7606139), Hosokawa, K., E. E. Woodfield (7590071), E. E. Woodfield, Sato, N., S. E. Milan (7594526), Woodfield, E. E.   +16 more
core   +1 more source

Wave and tidal power measurement using HF radar

International Marine Energy Journal, 2018
The use of HF radar systems located on the coast to measure ocean surface waves and currents is reviewed. Examples are given showing temporal, spatial and directional variability in the wave and tidal power resource. HF radars are unique in being able to
L. Wyatt
doaj   +1 more source

Sea Echoes for Airborne HF/VHF Radar: Mathematical Model and Simulation

Remote Sensing, 2020
Currently, shore-based HF radars are widely used for coastal observations, and airborne radars are utilized for monitoring the ocean with a relatively large coverage offshore.
Fan Ding, Chen Zhao, Zezong Chen, Jian Li   +3 more
doaj   +1 more source

HF Radar Activity in European Coastal Seas: Next Steps toward a Pan-European HF Radar Network [PDF]

Frontiers in Marine Science, 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, Mader, Julien, Corgnati, Lorenzo, Mantovani, Carlo, Griffa, Annalisa, Novellino, Antonio, Quentin, Céline Gwenaëlle, Wyatt, Lucy, Schulz-Stellenfleth, Johannes, Horstmann, Jochen, Lorente, Pablo, Zambianchi, Enrico, Hartnett, Michael, Fernandes, Carlos, Zervakis, Vassilis, Gorringe, Patrick, Melet, Angélique, Puillat, Ingrid   +17 more
openaire   +6 more sources

Doppler shift simulation of scattered HF signals during the Troms HF pumping experiment on 16 February 1996 [PDF]

, 2002
International audienceComparisons between bistatic scatter measurements and simulation results during the Tromsø HF pumping experiment on 16 February 1996 are made.
N. F. Blagoveshchenska, Moskvin, I. V., Borisova, T., Rietveld, M. T., Kosch, M., B. Thidé, Thidé, B., Rietveld, M., Borisova, T. D., T. D. Borisova, M. T. Rietveld, Moskvin, I., Blagoveshchenskaya, N., Kosch, M. J., M. J. Kosch, Blagoveshchenskaya, N. F., I. V. Moskvin, Blagoveshchenska, N. F.   +17 more
core   +1 more source

Ti3C2Tx MXene/Silver Composite Foams For Lightweight, High‐Performance Electromagnetic Interference Shielding and Joule Heating

Advanced Materials Interfaces, EarlyView.
Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood, Mingxuan Li, Vahid Rad, Mehdi Zarei, Chen‐Yu Yeh, Masoud Soroush, Guangyong Li, Paul W. Leu   +7 more
wiley   +1 more source