Results 41 to 50 of about 865,132 (377)
Mitigation of Mutual Antenna Coupling Effects for Active Radar Targets in L-Band
Remote Sensing, 2021 In order to realize a compact L-band transponder design for the calibration of spaceborne synthetic aperture radar (SAR) systems, a novel antenna was developed by DLR.
Anna Maria Büchner +4 more
doaj +1 more source
Range-Doppler Based CFAR Ship Detection with Automatic Training Data Selection
Remote Sensing, 2019 Ship detection is an essential maritime security requirement. Current state-of-the-art synthetic aperture radar (SAR) based ship detection methods employ fully focused images.
Sushil Kumar Joshi +3 more
doaj +1 more source
Dual-Frequency Airborne SAR for Large Scale Mapping of Tidal Flats
Remote Sensing, 2020 Digital elevation models of tidal flats are a most valuable data source for the water management of coastal areas and need frequent updates to account for changes in sedimentation, erosion and identification of damages in building infrastructure.
Muriel Pinheiro +7 more
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Magnetization switching by microwaves initially rotating in opposite direction to precession
, 2015 A common understanding of magnetization switching in microwave-assisted magnetization reversal is that the rotation direction of the microwaves should be the same with the precession direction of the magnetization.
Taniguchi, Tomohiro
core +1 more source
Remote Sensing, 2018 The geometric accuracy of synthetic aperture radar (SAR) data is usually derived from level-1 products using accurately surveyed corner reflector positions.
Kersten Schmidt +3 more
doaj +1 more source
3D Printed Hemispherically Radiating Antenna for Broadband Millimeter Wave Applications
IEEE Open Journal of Antennas and Propagation, 2023 Nowadays, additive manufacturing provides far-reaching possibilities for use in radio frequency components. In addition to almost unlimited freedom of design as compared to conventional manufacturing, the absence of further assembly steps is a key aspect
Lukas Engel +7 more
doaj +1 more source
Integrated microwave photonics [PDF]
Laser & Photonics Reviews, 2013 30 pages, 23 figures, to appear in Laser & Photonics ...
David Marpaung +6 more
openaire +5 more sources
Performance Comparison of Reflector- and Planar-Antenna Based Digital Beam-Forming SAR
International Journal of Antennas and Propagation, 2009 The trend in the conception of future spaceborne radar remote sensing is clearly toward the use of digital beamforming techniques. These systems will comprise multiple digital channels, where the analog-to-digital converter is moved closer to the antenna.
Marwan Younis +4 more
doaj +1 more source
Detection of Low RCS Unmanned Air Systems Using K-Band Continuous Wave Doppler Radar
Journal of Electrical and Computer Engineering, 2023 UASs (Unmanned Air Systems) are universally used in many activities, spanning from leisure-commercial to military applications. Accordingly, as the number of UASs operating in the sky increases, so does the need to detect and identify them, in order to ...
Alexandros Kyritsis +2 more
doaj +1 more source
Single Cooper pair tunneling induced by non-classical microwaves
, 1996 A mesoscopic Josephson junction interacting with a mode of non-classical microwaves with frequency $\omega$ is considered. Squeezing of the electromagnetic field drastically affects the dynamics of Cooper tunneling.
A Vourdas +9 more
core +1 more source