Results 251 to 260 of about 180,101 (277)
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Reference phantoms for microwave imaging
2017 11th European Conference on Antennas and Propagation (EUCAP), 2017Microwave imaging offers an alternative modality for breast cancer screening and for the diagnosis of cerebrovascular accidents. Before clinical application, the performances of microwave imaging systems have to be assessed on anatomically detailed anthropomorphic phantoms.
Joachimowicz, Nadine +3 more
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Applied Physics A, 2013
By using an on-chip microwave sensor employing spintronic and spin caloritronic principles, a spintronic technique has been developed for microwave imaging. This novel technique allows microwave fields to be directly rectified on chip into dc voltage signals. This imaging technique does not require complicated and expensive microwave systems to operate,
Z. X. Cao +4 more
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By using an on-chip microwave sensor employing spintronic and spin caloritronic principles, a spintronic technique has been developed for microwave imaging. This novel technique allows microwave fields to be directly rectified on chip into dc voltage signals. This imaging technique does not require complicated and expensive microwave systems to operate,
Z. X. Cao +4 more
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Machine Learning For Microwave Imaging
2020 14th European Conference on Antennas and Propagation (EuCAP), 2020This paper proposes a fully-connected artificial neural network (ANN) approach for addressing the full-wave inverse scattering problem in a quantitative fashion. The proposed scheme processes the scattered field samples collected at receivers locations and provides as output an estimate of the unknown complex permittivity in strongly non-linear ...
Ambrosanio M. +3 more
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IEEE Transactions on Antennas and Propagation, 1980
A microwave lens that is based on the principles of holography is described. It consists of a zone plate, and it has been shown theoretically and experimentally that it has the limit of resolution, which is predicted by the aperture and the wavelength used.
G. Hampsas, C. Stephanis
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A microwave lens that is based on the principles of holography is described. It consists of a zone plate, and it has been shown theoretically and experimentally that it has the limit of resolution, which is predicted by the aperture and the wavelength used.
G. Hampsas, C. Stephanis
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Multifrequency microwave imaging
The Fifth International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter, and Submillimeter Waves (IEEE Cat. No.04EX828), 2004Microwave imaging techniques are considered to be of great importance for different applications, and are extensively studied. One of the biggest problems of microwave imaging investigation is lack of experimental investigations what holds off practical implementation of these techniques.
V. Pahomov, S. Kurilo, V. Semenchik
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IEEE Microwave Magazine, 2012
Due to the enormous advances made in semiconductor technology over the last few years, high integration densities with moderate costs are achievable even in the millimeter-wave (mm-wave) range and beyond, which encourage the development of imaging systems with a high number of channels.
Lorenz-Peter Schmidt +5 more
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Due to the enormous advances made in semiconductor technology over the last few years, high integration densities with moderate costs are achievable even in the millimeter-wave (mm-wave) range and beyond, which encourage the development of imaging systems with a high number of channels.
Lorenz-Peter Schmidt +5 more
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Compressive-processing microwave imaging
2017 Sixth Asia-Pacific Conference on Antennas and Propagation (APCAP), 2017Microwave imaging techniques have been widely developed in the last years, exploiting different inversion strategies in several applicative scenarios. Among these, Compressive Sensing (CS) has been recently introduced in the electromagnetic community as an efficient and effective tool for solving inverse scattering problems. Anyway, despite the sensing
Anselmi, N. +3 more
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[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium, 1992
Es wird ueber die gemeinsamen Aktivitaeten in dem Projekt "Microwave Imaging" zwischen INPE/CTA und der DLR berichtet. Hierbei werden die Schwerpunkte: Mikrowellen-Radiometrie, abbildendes Radar und SAR-Processing dargestellt.
F. Witte, J. Moreira
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Es wird ueber die gemeinsamen Aktivitaeten in dem Projekt "Microwave Imaging" zwischen INPE/CTA und der DLR berichtet. Hierbei werden die Schwerpunkte: Mikrowellen-Radiometrie, abbildendes Radar und SAR-Processing dargestellt.
F. Witte, J. Moreira
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Multidimensional microwave imaging
Microwave and Optical Technology Letters, 1995AbstractThe high computational load associated with multidimensional high‐resolution algorithms is overcome by using only 1D LP techniques. The 3D backscattered field is approximated by three 1D AR models that are solved in succession for the down‐range, horizontal cross‐range, and vertical cross‐range positions of the scattering centers of a target.
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Introduction to Microwave Imaging
2014In this chapter a review of different electromagnetic (EM) imaging methods is presented. The focus on microwave tomography, the types, and advantages and disadvantages of local and global optimization in microwave imaging are reviewed.
Ali Ashtari +3 more
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