Results 41 to 50 of about 804,865 (321)
Huygens’ metasurfaces from microwaves to optics: a review
Nanophotonics, 2018 In this article, the basic principles and the main applications of Huygens’ metasurfaces (HMSs) are reviewed from microwaves to optics. In general, HMSs comprise a thin layer of orthogonal electric and magnetic dipoles, which form an array of Huygens ...
Michael Chen +3 more
semanticscholar +1 more source
IEEE Journal of Microwaves, 2022 Surface acoustic wave (SAW) radio-frequency identification (RFID) has high potential for industrial applications, where automated identification and localization of assets represent the backbone of process controlling and logistics.
Pau Caldero +2 more
doaj +1 more source
Multi-Temporal Sentinel-1 Backscatter and Coherence for Rainforest Mapping
Remote Sensing, 2020 This paper reports recent advancements in the field of Synthetic Aperture Radar (SAR) for forest mapping by using interferometric short-time-series.
Andrea Pulella +4 more
doaj +1 more source
Correlations in interfering electrons irradiated by nonclassical microwaves [PDF]
Physical Review A 66, 033813 (2002), 2003 Electron interference in mesoscopic devices irradiated by external non-classical microwaves, is considered. In the case of one-mode microwaves, it is shown that both the average intensity and the spectral density of the interfering electrons are sensitive to the quantum noise of the microwaves.
arxiv +1 more source
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
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
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
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
Remotely sensed transport in microwave photoexcited GaAs/AlGaAs two-dimensional electron system [PDF]
Appl. Phys. Lett. 102, 242113 (2013), 2013 We demonstrate a strong correlation between the magnetoresistive and the concurrent microwave reflection from the microwave photo-excited GaAs/AlGaAs two-dimensional electron system (2DES). These correlations are followed as a function of the microwave power, the microwave frequency, and the applied current.
arxiv +1 more source
High-Resolution Forest Mapping from TanDEM-X Interferometric Data Exploiting Nonlocal Filtering
Remote Sensing, 2018 In this paper, we discuss the potential and limitations of high-resolution single-pass interferometric synthetic aperture radar (InSAR) data for forest mapping.
Michele Martone +5 more
doaj +1 more source