Results 41 to 50 of about 2,457,520 (174)

Origami Microwave Imaging Array: Metasurface Tiles on a Shape‐Morphing Surface for Reconfigurable Computational Imaging

Advanced Science, 2022
Origami is the art of paper folding that allows a single flat piece of paper to assume different 3D shapes depending on the fold patterns and the sequence of folding.
Suresh Venkatesh, Daniel Sturm, Xuyang Lu, Robert J. Lang, Kaushik Sengupta   +4 more
doaj   +1 more source

A sparse coding approach to inverse problems with application to microwave tomography

CoRR, 2023
IAR 60th Anniversary: Prospects for Low Frequency Radio Astronomy in South ...
Caiafa, César Federico, Irastorza, Ramiro Miguel   +1 more
openaire   +3 more sources

Compressive Sensing Radar Imaging With Convolutional Neural Networks

IEEE Access, 2020
In the area of radar imaging at any frequency band from microwave to optics, the technique of compressive sensing (CS) enables high resolution with reduced number of antenna elements and measurements.
Qiao Cheng, Achintha Avin Ihalage, Yujie Liu, Yang Hao   +3 more
doaj   +1 more source

Imaging With WiFi

IEEE Access, 2019
A new method of creating microwave imagery by capturing the signals emitted by a small set of wireless WiFi transmitters is presented. The imaging technique leverages the fact that the signals emitted by separate WiFi transmitters are sufficiently ...
Stavros Vakalis, Liang Gong, Jeffrey A. Nanzer   +2 more
doaj   +1 more source

Application of conformal map theory for design of 2-D ultrasonic array structure for ndt imaging application : a feasibility study [PDF]

, 2014
Two-dimensional ultrasonic phased arrays are becoming increasingly popular in nondestructive evaluation (NDE). Sparse array element configurations are required to fully exploit the potential benefits of 2-D phased arrays. This paper applies the conformal
Ramadas, Sivaram Nishal, Gachagan, Anthony, Dziewierz, Jerzy, Jackson, Joseph, O'Leary, Richard   +4 more
core   +3 more sources

Efficient 3D Image Reconstruction for Near-Field Microwave Imaging Using Dynamic Metasurface Antenna

IEEE Access, 2022
In this paper, rapid reconstruction of a three-dimensional (3D) image of a scene for near-field microwave imaging using a dynamic metasurface antenna (DMA) is addressed.
Amir Masoud Molaei, Vasiliki Skouroliakou, Vincent Fusco, Okan Yurduseven   +3 more
doaj   +1 more source

SAR Observation Error Estimation Based on Maximum Relative Projection Matching

International Journal of Antennas and Propagation, 2020
The existing sparse imaging observation error estimation methods are to usually estimate the error of each observation position by substituting the error parameters into the iterative reconstruction process, which has a huge calculation cost.
Y. Zhang, B. P. Wang, Y. Fang, Z. X. Song   +3 more
doaj   +1 more source

Microwave-induced thermoelastic tissue imaging.

, 1988
Microwave-induced thermoelastic tissue ...
Karen Hing-Sheung. Chan (7974146)
core   +3 more sources

Microwave Imaging of Non-Rigid Moving Target Using 2D Sparse MIMO Array

IEEE Access, 2019
This paper develops a microwave/mmw (millimeter-wave) imaging method for moving objects of non-rigid body which can be used in the heavy traffic scenarios.
Zhanyu Zhu, Lei Kuang, Feng Xu
doaj   +1 more source

Geometric Continuity Characterization of Urban Buildings in SAR 3D Imaging Domain and Few-tracks 3D Imaging

Leida xuebao
Synthetic Aperture Radar (SAR) is an active microwave sensing technology capable of all-weather, day-and-night operation, making it a critical source of Earth observation data.
Fengming HU, Jifan TIAN, Guozhen CHENG, Feng XU   +3 more
doaj   +1 more source