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Experimental Study of Multispectral Characteristics of an Unmanned Aerial Vehicle at Different Observation Angles

This study investigates multispectral characteristics of an unmanned aerial vehicle (UAV) at different observation angles by experiment. The UAV and its engine are tested on the ground in the cruise state. Spectral radiation intensities at different observation angles are obtained in the infrared ba...

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Detalles Bibliográficos
Autores principales: Zheng, Haijing, Bai, Tingzhu, Wang, Quanxi, Cao, Fengmei, Shao, Long, Sun, Zhaotian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5855085/
https://www.ncbi.nlm.nih.gov/pubmed/29389880
http://dx.doi.org/10.3390/s18020428
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author Zheng, Haijing
Bai, Tingzhu
Wang, Quanxi
Cao, Fengmei
Shao, Long
Sun, Zhaotian
author_facet Zheng, Haijing
Bai, Tingzhu
Wang, Quanxi
Cao, Fengmei
Shao, Long
Sun, Zhaotian
author_sort Zheng, Haijing
collection PubMed
description This study investigates multispectral characteristics of an unmanned aerial vehicle (UAV) at different observation angles by experiment. The UAV and its engine are tested on the ground in the cruise state. Spectral radiation intensities at different observation angles are obtained in the infrared band of 0.9–15 μm by a spectral radiometer. Meanwhile, infrared images are captured separately by long-wavelength infrared (LWIR), mid-wavelength infrared (MWIR), and short-wavelength infrared (SWIR) cameras. Additionally, orientation maps of the radiation area and radiance are obtained. The results suggest that the spectral radiation intensity of the UAV is determined by its exhaust plume and that the main infrared emission bands occur at 2.7 μm and 4.3 μm. At observation angles in the range of 0°–90°, the radiation area of the UAV in MWIR band is greatest; however, at angles greater than 90°, the radiation area in the SWIR band is greatest. In addition, the radiance of the UAV at an angle of 0° is strongest. These conclusions can guide IR stealth technique development for UAVs.
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spelling pubmed-58550852018-03-20 Experimental Study of Multispectral Characteristics of an Unmanned Aerial Vehicle at Different Observation Angles Zheng, Haijing Bai, Tingzhu Wang, Quanxi Cao, Fengmei Shao, Long Sun, Zhaotian Sensors (Basel) Article This study investigates multispectral characteristics of an unmanned aerial vehicle (UAV) at different observation angles by experiment. The UAV and its engine are tested on the ground in the cruise state. Spectral radiation intensities at different observation angles are obtained in the infrared band of 0.9–15 μm by a spectral radiometer. Meanwhile, infrared images are captured separately by long-wavelength infrared (LWIR), mid-wavelength infrared (MWIR), and short-wavelength infrared (SWIR) cameras. Additionally, orientation maps of the radiation area and radiance are obtained. The results suggest that the spectral radiation intensity of the UAV is determined by its exhaust plume and that the main infrared emission bands occur at 2.7 μm and 4.3 μm. At observation angles in the range of 0°–90°, the radiation area of the UAV in MWIR band is greatest; however, at angles greater than 90°, the radiation area in the SWIR band is greatest. In addition, the radiance of the UAV at an angle of 0° is strongest. These conclusions can guide IR stealth technique development for UAVs. MDPI 2018-02-01 /pmc/articles/PMC5855085/ /pubmed/29389880 http://dx.doi.org/10.3390/s18020428 Text en © 2018 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zheng, Haijing
Bai, Tingzhu
Wang, Quanxi
Cao, Fengmei
Shao, Long
Sun, Zhaotian
Experimental Study of Multispectral Characteristics of an Unmanned Aerial Vehicle at Different Observation Angles
title Experimental Study of Multispectral Characteristics of an Unmanned Aerial Vehicle at Different Observation Angles
title_full Experimental Study of Multispectral Characteristics of an Unmanned Aerial Vehicle at Different Observation Angles
title_fullStr Experimental Study of Multispectral Characteristics of an Unmanned Aerial Vehicle at Different Observation Angles
title_full_unstemmed Experimental Study of Multispectral Characteristics of an Unmanned Aerial Vehicle at Different Observation Angles
title_short Experimental Study of Multispectral Characteristics of an Unmanned Aerial Vehicle at Different Observation Angles
title_sort experimental study of multispectral characteristics of an unmanned aerial vehicle at different observation angles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5855085/
https://www.ncbi.nlm.nih.gov/pubmed/29389880
http://dx.doi.org/10.3390/s18020428
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