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Compressive Sensing Imaging Spectrometer for UV-Vis Stellar Spectroscopy: Instrumental Concept and Performance Analysis

Compressive sensing (CS) has been proposed as a disruptive approach to developing a novel class of optical instrumentation used in diverse application domains. Thanks to sparsity as an inherent feature of many natural signals, CS allows for the acquisition of the signal in a very compact way, mergin...

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Autores principales: Nardino, Vanni, Guzzi, Donatella, Lastri, Cinzia, Palombi, Lorenzo, Coluccia, Giulio, Magli, Enrico, Labate, Demetrio, Raimondi, Valentina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9965062/
https://www.ncbi.nlm.nih.gov/pubmed/36850867
http://dx.doi.org/10.3390/s23042269
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author Nardino, Vanni
Guzzi, Donatella
Lastri, Cinzia
Palombi, Lorenzo
Coluccia, Giulio
Magli, Enrico
Labate, Demetrio
Raimondi, Valentina
author_facet Nardino, Vanni
Guzzi, Donatella
Lastri, Cinzia
Palombi, Lorenzo
Coluccia, Giulio
Magli, Enrico
Labate, Demetrio
Raimondi, Valentina
author_sort Nardino, Vanni
collection PubMed
description Compressive sensing (CS) has been proposed as a disruptive approach to developing a novel class of optical instrumentation used in diverse application domains. Thanks to sparsity as an inherent feature of many natural signals, CS allows for the acquisition of the signal in a very compact way, merging acquisition and compression in a single step and, furthermore, offering the capability of using a limited number of detector elements to obtain a reconstructed image with a larger number of pixels. Although the CS paradigm has already been applied in several application domains, from medical diagnostics to microscopy, studies related to space applications are very limited. In this paper, we present and discuss the instrumental concept, optical design, and performances of a CS imaging spectrometer for ultraviolet-visible (UV–Vis) stellar spectroscopy. The instrument—which is pixel-limited in the entire 300 nm–650 nm spectral range—features spectral sampling that ranges from 2.2 nm@300 nm to 22 nm@650 nm, with a total of 50 samples for each spectrum. For data reconstruction quality, the results showed good performance, measured by several quality metrics chosen from those recommended by CCSDS. The designed instrument can achieve compression ratios of 20 or higher without a significant loss of information. A pros and cons analysis of the CS approach is finally carried out, highlighting main differences with respect to a traditional system.
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spelling pubmed-99650622023-02-26 Compressive Sensing Imaging Spectrometer for UV-Vis Stellar Spectroscopy: Instrumental Concept and Performance Analysis Nardino, Vanni Guzzi, Donatella Lastri, Cinzia Palombi, Lorenzo Coluccia, Giulio Magli, Enrico Labate, Demetrio Raimondi, Valentina Sensors (Basel) Article Compressive sensing (CS) has been proposed as a disruptive approach to developing a novel class of optical instrumentation used in diverse application domains. Thanks to sparsity as an inherent feature of many natural signals, CS allows for the acquisition of the signal in a very compact way, merging acquisition and compression in a single step and, furthermore, offering the capability of using a limited number of detector elements to obtain a reconstructed image with a larger number of pixels. Although the CS paradigm has already been applied in several application domains, from medical diagnostics to microscopy, studies related to space applications are very limited. In this paper, we present and discuss the instrumental concept, optical design, and performances of a CS imaging spectrometer for ultraviolet-visible (UV–Vis) stellar spectroscopy. The instrument—which is pixel-limited in the entire 300 nm–650 nm spectral range—features spectral sampling that ranges from 2.2 nm@300 nm to 22 nm@650 nm, with a total of 50 samples for each spectrum. For data reconstruction quality, the results showed good performance, measured by several quality metrics chosen from those recommended by CCSDS. The designed instrument can achieve compression ratios of 20 or higher without a significant loss of information. A pros and cons analysis of the CS approach is finally carried out, highlighting main differences with respect to a traditional system. MDPI 2023-02-17 /pmc/articles/PMC9965062/ /pubmed/36850867 http://dx.doi.org/10.3390/s23042269 Text en © 2023 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
Nardino, Vanni
Guzzi, Donatella
Lastri, Cinzia
Palombi, Lorenzo
Coluccia, Giulio
Magli, Enrico
Labate, Demetrio
Raimondi, Valentina
Compressive Sensing Imaging Spectrometer for UV-Vis Stellar Spectroscopy: Instrumental Concept and Performance Analysis
title Compressive Sensing Imaging Spectrometer for UV-Vis Stellar Spectroscopy: Instrumental Concept and Performance Analysis
title_full Compressive Sensing Imaging Spectrometer for UV-Vis Stellar Spectroscopy: Instrumental Concept and Performance Analysis
title_fullStr Compressive Sensing Imaging Spectrometer for UV-Vis Stellar Spectroscopy: Instrumental Concept and Performance Analysis
title_full_unstemmed Compressive Sensing Imaging Spectrometer for UV-Vis Stellar Spectroscopy: Instrumental Concept and Performance Analysis
title_short Compressive Sensing Imaging Spectrometer for UV-Vis Stellar Spectroscopy: Instrumental Concept and Performance Analysis
title_sort compressive sensing imaging spectrometer for uv-vis stellar spectroscopy: instrumental concept and performance analysis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9965062/
https://www.ncbi.nlm.nih.gov/pubmed/36850867
http://dx.doi.org/10.3390/s23042269
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