Journal ArticleDOI
Three-Dimensional Microwave Holographic Imaging Using Co- and Cross-Polarized Data
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TLDR
In this paper, a full vector three-dimensional holographic technique is proposed for near-field imaging of dielectric bodies, which allows for the processing of two (co- and cross-polarized) scattered field components in a single reconstruction process.Abstract:
A full vector three-dimensional holographic technique is proposed for near-field imaging of dielectric bodies. This new formulation allows for the processing of two (co- and cross-polarized) scattered field components in a single reconstruction process. We demonstrate that employing both co- and cross-polarized signals leads to significant improvement of the target shape reconstruction. The simulated examples for X-shaped and square-shaped targets in a lossy background medium are presented.read more
Citations
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Journal ArticleDOI
Metamaterial-Inspired Antenna Array for Application in Microwave Breast Imaging Systems for Tumor Detection
Mohammad Alibakhshikenari,Bal Singh Virdee,Panchamkumar Shukla,Naser Ojaroudi Parchin,Leyre Azpilicueta,Chan H. See,Raed A. Abd-Alhameed,Francisco Falcone,Isabelle Huynen,Tayeb A. Denidni,Ernesto Limiti +10 more
TL;DR: It is found that short wavelength gives better resolution in a planar antenna-array inspired by the metamaterial concept where the resonant elements have sub-wavelength dimensions for application in microwave medical imaging systems for detecting tumors in biological tissues.
Journal ArticleDOI
Modeling Human Head Tissues Using Fourth-Order Debye Model in Convolution-Based Three-Dimensional Finite-Difference Time-Domain
TL;DR: In this article, a convolution-based three-dimensional finite-difference time-domain (3D-FDTD) formulation is implemented for modeling the electromagnetic wave propagation in the dispersive head tissues whose frequency dependent properties are represented by the derived fourth-order Debye model.
Journal ArticleDOI
Full-vectorial parallel finite-element contrast source inversion method
TL;DR: In this paper, a multiplicatively regularized flnite-element contrast source inversion algorithm (MR-FEM-CSI) is used to solve the full vectorial three-dimensional (3D) inverse scattering problem.
Journal ArticleDOI
Computational polarimetric microwave imaging.
Thomas Fromenteze,Okan Yurduseven,Michael Boyarsky,Jonah N. Gollub,Daniel L. Marks,David R. Smith +5 more
TL;DR: In this article, a frequency-diverse cavity-backed metasurface was proposed for high-resolution polarimetric imaging using a single transceiver and frequency sweep over the operational microwave bandwidth.
Journal ArticleDOI
Multidimensional Feature Representation and Learning for Robust Hand-Gesture Recognition on Commercial Millimeter-Wave Radar
TL;DR: The results show that the proposed gesture recognition method can effectively distinguish gestures that are easily confused in the RD domain and achieve robust performances under various conditions.
References
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Book
Waves and Fields in Inhomogeneous Media
TL;DR: Inverse scattering problems in planar and spherically layered media have been studied in this article, where Dyadic Green's functions have been applied to the mode matching method to solve the problem.
Journal ArticleDOI
Three-dimensional millimeter-wave imaging for concealed weapon detection
TL;DR: In this paper, a widebandwidth three-dimensional holographic microwave imaging technique is described for the detection of concealed weapons or other contraband carried on personnel since millimeter-waves are nonionizing, readily penetrate common clothing material, and are reflected from the human body and any concealed items.
Journal ArticleDOI
Enhancing breast tumor detection with near-field imaging
TL;DR: In this paper, the main focus is on active microwave systems, in particular microwave tomography and confocal microwave imaging, and the main features of active, passive, and hybrid systems under investigation for breast cancer detection.
Book
Microwave non-destructive testing and evaluation
TL;DR: In this article, a detailed dielectric composite evaluation is presented, along with a surface crack detection approach for near-field measurement techniques and applications, and a survey of the current state of the art is presented.
Journal ArticleDOI
Three-dimensional FDTD analysis of a pulsed microwave confocal system for breast cancer detection: design of an antenna-array element
TL;DR: In this paper, the authors investigated a new ultrawide-band (UWB) microwave radar technology to detect and image early stage malignant breast tumors that are often invisible to X-rays.