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Millimeter-Wave Imaging System Based on Direct-Conversion Focal-Plane Array Receiver
A new approach to millimeter-wave imaging was suggested and experimentally studied. This approach can be considered as the evolution of the well-established focal-plane array (FPA) millimeter-wave imaging. The significant difference is the use of a direct-conversion array receiver, instead of the di...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9573460/ https://www.ncbi.nlm.nih.gov/pubmed/36236231 http://dx.doi.org/10.3390/s22197132 |
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author | Korolyov, Sergey Goryunov, Aleksandr Illarionov, Ivan Parshin, Vladimir Zemlyanukha, Petr |
author_facet | Korolyov, Sergey Goryunov, Aleksandr Illarionov, Ivan Parshin, Vladimir Zemlyanukha, Petr |
author_sort | Korolyov, Sergey |
collection | PubMed |
description | A new approach to millimeter-wave imaging was suggested and experimentally studied. This approach can be considered as the evolution of the well-established focal-plane array (FPA) millimeter-wave imaging. The significant difference is the use of a direct-conversion array receiver, instead of the direct-detection array receiver, along with the frequency-modulated continuous-wave (FMCW) radar technique. The sensitivity of the direct-conversion receiver is several orders higher than the sensitivity of the direct-detection one, which allows us to increase the maximum imaging range by more than one order of magnitude. The additional advantage of the direct-conversion technique is the opportunity to obtain information about the range to an object. The realization of the direct-conversion FPA imaging system was made possible due to original sensitive simple-designed receiving elements based on low-barrier Mott diodes. The suggested imaging method’s main characteristics, which include the achievable angular and range resolution and the achievable maximum imaging range, were studied. A maximum range of up to 100 m was experimentally determined. A 94 GHz 8 × 8 imaging system was developed for demonstration purposes and studied in detail. The suggested technique is assumed to be useful for creating a long-range millimeter-wave camera, in particular, for robotic systems that operate in poor environmental conditions. |
format | Online Article Text |
id | pubmed-9573460 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-95734602022-10-17 Millimeter-Wave Imaging System Based on Direct-Conversion Focal-Plane Array Receiver Korolyov, Sergey Goryunov, Aleksandr Illarionov, Ivan Parshin, Vladimir Zemlyanukha, Petr Sensors (Basel) Article A new approach to millimeter-wave imaging was suggested and experimentally studied. This approach can be considered as the evolution of the well-established focal-plane array (FPA) millimeter-wave imaging. The significant difference is the use of a direct-conversion array receiver, instead of the direct-detection array receiver, along with the frequency-modulated continuous-wave (FMCW) radar technique. The sensitivity of the direct-conversion receiver is several orders higher than the sensitivity of the direct-detection one, which allows us to increase the maximum imaging range by more than one order of magnitude. The additional advantage of the direct-conversion technique is the opportunity to obtain information about the range to an object. The realization of the direct-conversion FPA imaging system was made possible due to original sensitive simple-designed receiving elements based on low-barrier Mott diodes. The suggested imaging method’s main characteristics, which include the achievable angular and range resolution and the achievable maximum imaging range, were studied. A maximum range of up to 100 m was experimentally determined. A 94 GHz 8 × 8 imaging system was developed for demonstration purposes and studied in detail. The suggested technique is assumed to be useful for creating a long-range millimeter-wave camera, in particular, for robotic systems that operate in poor environmental conditions. MDPI 2022-09-20 /pmc/articles/PMC9573460/ /pubmed/36236231 http://dx.doi.org/10.3390/s22197132 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Korolyov, Sergey Goryunov, Aleksandr Illarionov, Ivan Parshin, Vladimir Zemlyanukha, Petr Millimeter-Wave Imaging System Based on Direct-Conversion Focal-Plane Array Receiver |
title | Millimeter-Wave Imaging System Based on Direct-Conversion Focal-Plane Array Receiver |
title_full | Millimeter-Wave Imaging System Based on Direct-Conversion Focal-Plane Array Receiver |
title_fullStr | Millimeter-Wave Imaging System Based on Direct-Conversion Focal-Plane Array Receiver |
title_full_unstemmed | Millimeter-Wave Imaging System Based on Direct-Conversion Focal-Plane Array Receiver |
title_short | Millimeter-Wave Imaging System Based on Direct-Conversion Focal-Plane Array Receiver |
title_sort | millimeter-wave imaging system based on direct-conversion focal-plane array receiver |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9573460/ https://www.ncbi.nlm.nih.gov/pubmed/36236231 http://dx.doi.org/10.3390/s22197132 |
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