Results 1 to 10 of about 193,411 (346)
Computational polarimetric microwave imaging [PDF]
Optics Express, 2017 We propose a polarimetric microwave imaging technique that exploits recent advances in computational imaging. We utilize a frequency-diverse cavity-backed metasurface, allowing us to demonstrate high-resolution polarimetric imaging using a single transceiver and frequency sweep over the operational microwave bandwidth. The frequency-diverse metasurface
Fromenteze, Thomas +5 more
openaire +11 more sources
Continuous-capture microwave imaging. [PDF]
Nat Commun, 2021 AbstractLight-in-flight sensing has emerged as a promising technique in image reconstruction applications at various wavelengths. We report a microwave imaging system that uses an array of transmitters and a single receiver operating in continuous transmit-receive mode. Captures take a few microseconds and the corresponding images cover a spatial range
da Silva FCS +5 more
europepmc +5 more sources
Design and optimization of miniaturized co-planar Vivaldi antennas for enhanced microwave imaging in brain hemorrhage detection. [PDF]
Sci RepZhang W +7 more
europepmc +3 more sources
Design and experimental validation of a metamaterial-based sensor for microwave imaging in breast, lung, and brain cancer detection. [PDF]
Sci RepHamza MN +2 more
europepmc +3 more sources
Estimating Significant Wave Height from SAR with Long Integration Times
Applied Sciences, 2022 Synthetic aperture radar (SAR) is an important means of estimating significant wave height with obvious advantages of all-day, all-weather, high resolution and wide swath coverage.
Yawei Zhao +4 more
doaj +1 more source
Sea Spike Suppression Method Based on Optimum Polarization Ratio in Airborne SAR Images
Sensors, 2021 In the condition of ocean observation for high-resolution airborne synthetic aperture radar (SAR), sea spikes will cause serious interference to SAR image interpretation and marine target detection. In order to improve the ability of target detection, it
Yawei Zhao +4 more
doaj +1 more source
Measuring Ocean Surface Current in the Kuroshio Region Using Gaofen-3 SAR Data
Applied Sciences, 2021 The Kuroshio is the strongest warm current in the western North Pacific, which plays a crucial role in climate and human activities. In terms of this, the accurate acquisition of ocean surface current velocity and direction in the Kuroshio region is of ...
Yan Li +4 more
doaj +1 more source
Cosmic microwave background images [PDF]
IEEE Signal Processing Magazine, 2010 We aim to present a tutorial on the detection, parameter estimation and statistical analysis of compact sources (far galaxies, galaxy clusters and Galactic dense emission regions) in cosmic microwave background observations. The topic is of great relevance for current and future cosmic microwave background missions because the presence of compact ...
Herranz, Diego, Vielva, Patricio
openaire +4 more sources
IEEE Access, 2020 This paper focuses on the application of radio tomographic imaging in through-the-wall image reconstruction. By using the simple wireless communication devices, e.g., Wi-Fi cards, the whole building layout can be reconstructed with only the received ...
Qichang Guo +4 more
doaj +1 more source
SAR Imaging Algorithm of Ocean Waves Based on Optimum Subaperture
Sensors, 2022 Synthetic Aperture Radar (SAR) is widely applied to the field of ocean remote sensing. Clear SAR images are the basis for ocean information acquisitions, such as parameter retrieval of ocean waves and wind field inversion of the ocean surface.
Yawei Zhao +3 more
doaj +1 more source