Towards portable radar imaging solutions: freehand systems and the computational imaging paradigm
Towards portable radar imaging solutions: freehand systems and the computational imaging paradigm – by Dr. Guillermo Alvarez Narciandi, University of Oviedo (Spain)
Electromagnetic imaging enables to penetrate through some optically-opaque materials. This ability to ‘look inside’ objects and structures is incredibly useful — with applications ranging from medical diagnostics and security screening to food inspection, to name a few. However, conventional imaging systems usually involve significant hardware complexity and cost, which prevents their widespread adoption. In this talk we will present the concept of freehand radar imaging and some prototypes developed by our team, which enable to retrieve high-resolution radar images using a compact radar module and pave the way for handheld imaging systems. Furthermore, we will discuss how the computational imaging paradigm, which relies on a spatially diverse illumination with metasurface-based antennas, has emerged as a promising alternative to the traditional synthetic aperture radar paradigm.
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- Univ. of Zagreb, Faculty of Electrical Engineering and Computing
- Miramarska Cesta 20
- Zagreb, Grad Zagreb
- Croatia 10000
- Building: Martinovka
- Room Number: M2
Speakers
Dr. Guillermo Alvarez-Narciandi of University of Oviedo
Towards portable radar imaging solutions: freehand systems and the computational imaging paradigm
Electromagnetic imaging enables to penetrate through some optically-opaque materials. This ability to ‘look inside’ objects and structures is incredibly useful — with applications ranging from medical diagnostics and security screening to food inspection, to name a few. However, conventional imaging systems usually involve significant hardware complexity and cost, which prevents their widespread adoption. In this talk we will present the concept of freehand radar imaging and some prototypes developed by our team, which enable to retrieve high-resolution radar images using a compact radar module and pave the way for handheld imaging systems. Furthermore, we will discuss how the computational imaging paradigm, which relies on a spatially diverse illumination with metasurface-based antennas, has emerged as a promising alternative to the traditional synthetic aperture radar paradigm.
Biography:
Dr. Guillermo Alvarez-Narciandi received the M.Sc. degree in telecommunication engineering and the Ph.D. degree from the University of Oviedo, Spain, in 2016 and 2020, respectively. From 2013 to 2022, he was with the Signal Theory and Communications Research Group, TSC-UNIOVI, University of Oviedo. He was a Visiting Student with Stanford University, Stanford, CA, USA, in 2014, and a Visiting Scholar with the University of Pisa, Pisa, Italy, in 2018, and the Institute of Electronics, Microelectronics and Nanotechnology, University of Lille, Lille, France, in 2019. In 2022, he joined Queen’s University Belfast, Belfast, U.K., where he was a Marie Skłodowska-Curie Actions (MSCA) Research Fellow at the Centre for Wireless Innovation from 2023 to 2024. Since January 2025 he is a Ramón y Cajal Research Fellow at the University of Oviedo, Spain.
He has authored more than 90 peer-reviewed journals and conference papers, and he holds two patents. Currently, his research is mainly devoted to the development of portable imaging systems (handheld and UAV-based), synthetic aperture radar (SAR) techniques and computational imaging. His research interests also include antenna diagnosis and characterization, localization and attitude estimation systems, and RFID technology.
Dr. Alvarez-Narciandi has received several awards, such as the Antenna Measurement Techniques Association (AMTA) 2019 Student Paper Award (Second Place), and a MyGalileoDrone 4th prize awarded by the European Global Navigation Satellite Systems Agency (GSA) in March 2021.
Email:
Address:University of Oviedo, , Gijon, Asturias, Spain, 33203