Results 11 to 20 of about 187,363 (292)
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 ...
Fromenteze, Thomas +5 more
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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 ...
Diego Herranz, Patricio Vielva
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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
Microwave Imaging by Elastic Deformation [PDF]
SIAM Journal on Applied Mathematics, 2011 In this paper, we show that by using microwave measurements at different frequencies and ultrasound localized perturbations to create local changes in the medium it is possible to extend the method developed by Ammari et al. in [SIAM J. Appl. Math., 68 (2008), pp.
Habib Ammari +4 more
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Leida xuebao, 2016 Sparse microwave imaging is new concept, theory and methodology of microwave imaging, which introduces the sparse signal processing theory to microwave imaging and combines them together to overcome the paradox of increasing system complexity and imaging
Zhang Zhe +3 more
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RIPless Based Radar Waveform Analysis in Sparse Microwave Imaging
Leida xuebao, 2013 The echo data can be modeled as the product of the Toeplitz matrix and reflectivity of the observed scene. The row of the Toeplitz matrix is the time-shift of the transmitted signal.
Zhao Yao +3 more
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Towards microwave imaging of cells [PDF]
Lab on a Chip, 2018 We have simultaneously used the first two modes of a microwave resonant sensor integrated with microfluidics to size and locate droplets and cells. Higher-order modes can yield further spatial details of cells.
Mehmet Kelleci +4 more
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Scattering-Point Topology for Few-Shot Ship Classification in SAR Images
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 Synthetic aperture radar (SAR) has emerged as a critical technology for detecting and classifying objects, such as ships, in challenging environments.
Yipeng Zhang +3 more
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Microwave Imaging of Cotton Bales [PDF]
Sensors, 2008 Modern moisture restoration systems are increasingly capable of adding water to cotton bales. However, research has identified large variations in internal moisture within bales that are not readily monitored by current systems. While microwave moisture sensing systems can measure average bale moisture, this can be deceptive where water is unevenly ...
Mathew G. Pelletier, Edward M. Barnes
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Monitoring thermal ablation via microwave tomography. An ex vivo experimental assessment [PDF]
, 2018 Thermal ablation treatments are gaining a lot of attention in the clinics thanks to their reduced invasiveness and their capability of treating non-surgical patients.
Cavagnaro, M. +4 more
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