Results 211 to 220 of about 127,490,332 (269)

Detectable safety gestalt of rheumatoid arthritis treatments from pivotal clinical drug trials. [PDF]

open access: yesRheumatology (Oxford)
Konzett V   +3 more
europepmc   +1 more source

Space-Time Coding Conformal Metasurfaces for Multifrequency Beam Steering and Shaping. [PDF]

open access: yesAdv Mater
Pepe F   +8 more
europepmc   +1 more source

Cognitive over-the-horizon radar

Proceedings of 2011 IEEE CIE International Conference on Radar, 2011
Combined the characteristics of skywave over-the-horizon radar with the concept of cognitive radar, cognitive over-the-horizon radar (COTHR) becomes an important development approach of over-the-horizon radars. Integrating multitasking requirements with real-time dynamically sensing to propagation media--the ionosphere, COTHR assigns intelligently the ...
null Kun Lu, null Xuyuan Chen
exaly   +2 more sources

High-Frequency Over-the-Horizon Radar in Canada

IEEE Geoscience and Remote Sensing Letters, 2018
Over-the-horizon radars (OTHRs) have recently been making a comeback in Canada. As the need for accurate long-range tracking becomes more important, less-expensive ground-based radars are once again being considered for more effective long-range surveillance of Canadian airspace. Ray tracing is a powerful tool and is, especially, useful in applications
Thayananthan Thayaparan
exaly   +2 more sources

Application of MIMO radar techniques to over-the-horizon radar

2016 IEEE International Symposium on Phased Array Systems and Technology (PAST), 2016
Multiple-Input Multiple-Output (MIMO) radar has been an active topic in the radar research community for over a decade [1]–[3]. MIMO based approaches have been investigated for improving target detectability, improving target localisation, achieving higher spatial resolution, and clutter reduction using transmit or joint transmit-receive beamforming ...
Gordon J Frazer
exaly   +2 more sources

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