Search Results - "Laviada, Jaime"

Towards Turning Smartphones Into mmWave Scanners by Alvarez-Narciandi, Guillermo, Laviada, Jaime, Las-Heras, Fernando

“…This paper aims to assess the possibilities of using current and incoming fifth generation (5G) devices as millimeter wave (mmWave) imagers. For this purpose,…”
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Scalar Calibration for Broadband Phaseless Antenna Measurements Based on Indirect Off-Axis Holography by Arboleya, Ana, Laviada, Jaime, Las-Heras, Fernando

“…A scalar calibration method for broadband off-axis holography phaseless antenna characterization and diagnostics is presented in this communication. With the…”
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Multiview three-dimensional reconstruction by millimetre-wave portable camera by Laviada, Jaime, Arboleya-Arboleya, Ana, Álvarez, Yuri, González-Valdés, Borja, Las-Heras, Fernando

“…Millimetre-wave imaging is a powerful non-destructive inspection technique which has become widely used in areas such as through-the-wall imaging or concealed…”
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Freehand, Agile, and High-Resolution Imaging With Compact mm-Wave Radar by Alvarez-Narciandi, Guillermo, Lopez-Portugues, Miguel, Las-Heras, Fernando, Laviada, Jaime

“…The aim of this paper is to present a freehand scanning system with a compact mm-wave radar. In order to achieve high-resolution images, the system exploits…”
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Phaseless Characterization of Broadband Antennas by Arboleya, Ana, Laviada, Jaime, Ala-Laurinaho, Juha, Alvarez, Yuri, Las-Heras, Fernando, Raisanen, Antti V.

“…A new efficient method for broadband antenna characterization from phaseless acquisitions in the frequency-domain (FD) is presented. The phase-retrieval…”
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Multi-Layered Circular Dielectric Structures’ Synthetic Aperture Radar Imaging Based on Green’s Function Using Non-Uniform Measurements by Wu, Baolong, Álvarez-Narciandi, Guillermo, Laviada, Jaime

“…The electromagnetic imaging of multi-layered circular structures can be accomplished by means of different approaches. Among these approaches, the use of…”
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A Portable Electromagnetic System Based on mm-Wave Radars and GNSS-RTK Solutions for 3D Scanning of Large Material Piles by Fernández Álvarez, Humberto, Álvarez-Narciandi, Guillermo, García-Fernández, María, Laviada, Jaime, Álvarez López, Yuri, Las-Heras Andrés, Fernando

“…In this paper, a portable three-dimensional (3D) scanning system for the accurate characterization of large raw material (e.g., cereal grain, coal, etc.)…”
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Dual-Coverage Electromagnetic Skin With Independent Shaped Beams for Sub-THz 6G Communications by Martinez-de-Rioja, Eduardo, Feito, Alejandro, Palaci, Jesus, Arboleya, Ana, Laviada, Jaime, Las-Heras, Fernando

“…This paper proposes a dual-coverage Electromagnetic Skin (EM skin) based on a single-layer reflecting panel to provide coverage of blind zones and enhance 6G…”
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System Based on Compact mmWave Radar and Natural Body Movement for Assisting Visually Impaired People by Alvarez, Humberto Fernandez, Alvarez-Narciandi, Guillermo, Las-Heras, Fernando, Laviada, Jaime

“…The aim of this paper is to show how compact mmWave radar systems, attached to a person, can take advantage of their movements, in order to significantly…”
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Multistatic Millimeter-Wave Imaging by Multiview Portable Camera by Laviada, Jaime, Arboleya-Arboleya, Ana, Las-Heras, Fernando

“…The aim of this paper is to introduce the use of sparse multistatic arrays to reduce the number of elements in novel portable and muti-view millimiter-wave…”
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Improving the Performance of the Phaseless Sources Reconstruction Method for Antenna Diagnostics and Characterization by Lopez, Yuri Alvarez, Fernandez, Maria Garcia, Martinez, Jaime Laviada, Andres, Fernando Las-Heras

“…Unmanned Aerial Vehicles (UAV)-based near field (NF) antenna measurement techniques have experienced significant development in recent years thanks to…”
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Multiview mm-Wave Imaging With Augmented Depth Camera Information by Laviada, Jaime, Lopez-Portugues, Miguel, Arboleya-Arboleya, Ana, Las-Heras, Fernando

“…This paper introduces a hybrid method that combines two 3-D imaging methods of very different nature but complementary. On the one hand, a depth camera, also…”
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A Modified Phaseless Inverse Scattering Setup Based on Indirect Holography Implemented at Submillimeter-Wave Band by Laviada Martinez, Jaime, Alvarez-Lopez, Yuri, Arboleya-Arboleya, Ana, Garcia-Gonzalez, Cebrian, Las-Heras, Fernando

“…The aim of this communication is to present an enhanced phaseless inverse scattering setup and its implementation at the submillimeter-wave band. This setup is…”
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Freehand mm-Wave Imaging With a Compact MIMO Radar by Alvarez-Narciandi, Guillermo, Laviada, Jaime, Las-Heras, Fernando

“…This communication presents a freehand imaging system, which takes full advantage of a compact multiple-input multiple-output (MIMO) radar to provide the…”
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Multilayered Circular Dielectric Structure SAR Imaging Using Time-Reversal Compressed Sensing Algorithms Based on Nonuniform Measurement by Wu, Baolong, Alvarez-Narciandi, Guillermo, Laviada, Jaime

“…In this letter, an algorithm for synthetic aperture radar imaging of electrically small targets embedded in multilayered cylindrical geometries (e.g., pipes)…”
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Phaseless Antenna Diagnostics Based on Off-Axis Holography With Synthetic Reference Wave by Laviada Martinez, Jaime, Arboleya-Arboleya, Ana, Alvarez-Lopez, Yuri, Garcia-Gonzalez, Cebrian, Las-Heras, Fernando

“…An antenna diagnostics method based on off-axis holography is presented in this letter. In this novel phaseless antenna measurement setup, the reference wave…”
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Artifact Mitigation for High-Resolution Near-Field SAR Images by Means of Conditional Generative Adversarial Networks by Laviada, Jaime, Alvarez-Narciandi, Guillermo, Las-Heras, Fernando

“…This work presents an approach to enhance the quality of high-resolution images obtained by means of systems relying on synthetic aperture radar (SAR). For…”
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Prof. Sarkar's contribution to Antenna Diagnostics and NF-FF Transformation by Andres, Fernando Las-Heras, Lopez, Yuri Alvarez, Garcia-Fernandez, Maria, Alvarez-Narciandi, Guillermo, Martinez, Jaime Laviada

“…This contribution summarizes one of the numerous contributions to electromagnetics of Prof. Sarkar. In particular, it is focused on the equivalent…”
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Time-Reversal SAR Imaging for Nondestructive Testing of Circular and Cylindrical Multilayered Dielectric Structures by Wu, Baolong, Gao, Yuan, Laviada, Jaime, Ghasr, Mohammad Tayeb, Zoughi, Reza

“…In this paper, a synthetic aperture radar (SAR) approach, for imaging internal structures of generally lossy layered dielectric cylindrical objects, is…”
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Phaseless Antenna Measurement on Non-Redundant Sample Points Via Leith-Upatnieks Holography by Laviada, Jaime, Las-Heras, Fernando

“…A scheme for reducing the number of sample points in phaseless acquisition based on Leith-Upatnieks holography is presented. An appropriate choice of the phase…”
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