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Design and development of radio tomographic imaging system

Radio tomographic imaging (RTI) is an emerging imaging technique that utilizes the shadowing losses on links between multiple pairs of wireless nodes within the monitoring area to estimate the attenuation of physical objects. In recent years, RTI has gained huge interest from the researchers in devi...

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Main Authors:	Lee, C. C., Rahiman, Mohod Hafiz Fazalul, Abdul Rahim, Ruzairi, A. Saad, F. S.
Format:	Article
Language:	English
Published:	Malaysian Society for Computed Tomography & Imaging Technology (MyCT) 2021
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/97262/1/RuzairiAbdulRahim2021_DesignandDevelopmentofRadiouTomographic.pdf http://eprints.utm.my/id/eprint/97262/ http://www.tssa.my/index.php/jtssa/article/view/161
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spelling	my.utm.972622022-09-26T02:08:35Z http://eprints.utm.my/id/eprint/97262/ Design and development of radio tomographic imaging system Lee, C. C. Rahiman, Mohod Hafiz Fazalul Abdul Rahim, Ruzairi A. Saad, F. S. TK Electrical engineering. Electronics Nuclear engineering Radio tomographic imaging (RTI) is an emerging imaging technique that utilizes the shadowing losses on links between multiple pairs of wireless nodes within the monitoring area to estimate the attenuation of physical objects. In recent years, RTI has gained huge interest from the researchers in device-free localization (DFL) field due to its ability in generating an image to localize a target within the monitoring area. From the literature studies, researchers are primarily focused on the study of characterizing RSSI attenuation for different purposes such as human presence detection, privacy-preserving localization, indoor and outdoor localization. However, to the best of the authors' knowledge, there is no research conducted in studies the effects of phantoms with different dimensions towards the changes in received signal strength indicator (RSSI) value. Therefore, this paper presents a design and development of the RTI system to study and characterize the behaviour of radio waves propagation when phantoms with different dimensions are present within the monitoring area. An overview of the proposed RTI system, the arrangement of sensor arrays and a few factors that should take into consideration when using the RF sensors such as ground effects, near field and far-field region of an antenna have been discussed in this paper. Also, the details of the experimental design have been explained. Based on the results obtained from the experiments, the RSSI value decreases gradually as the dimension of phantoms with water medium increases. This is because when the diameter of a phantom with water medium increased, the water content inside the phantom also increased. Also, water is a high-attenuating medium and its dielectric constant is 80. Therefore, when the diameter of a phantom with water medium increased, the energy of the EM waves is absorbed and scattered more. This caused the attenuation of EM waves increased and resulted in lower RSSI value. Malaysian Society for Computed Tomography & Imaging Technology (MyCT) 2021-03 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/97262/1/RuzairiAbdulRahim2021_DesignandDevelopmentofRadiouTomographic.pdf Lee, C. C. and Rahiman, Mohod Hafiz Fazalul and Abdul Rahim, Ruzairi and A. Saad, F. S. (2021) Design and development of radio tomographic imaging system. Journal of Tomography System & Sensors Application, 4 (1). pp. 147-157. ISSN 2636-9133 http://www.tssa.my/index.php/jtssa/article/view/161 NA
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Lee, C. C. Rahiman, Mohod Hafiz Fazalul Abdul Rahim, Ruzairi A. Saad, F. S. Design and development of radio tomographic imaging system
description	Radio tomographic imaging (RTI) is an emerging imaging technique that utilizes the shadowing losses on links between multiple pairs of wireless nodes within the monitoring area to estimate the attenuation of physical objects. In recent years, RTI has gained huge interest from the researchers in device-free localization (DFL) field due to its ability in generating an image to localize a target within the monitoring area. From the literature studies, researchers are primarily focused on the study of characterizing RSSI attenuation for different purposes such as human presence detection, privacy-preserving localization, indoor and outdoor localization. However, to the best of the authors' knowledge, there is no research conducted in studies the effects of phantoms with different dimensions towards the changes in received signal strength indicator (RSSI) value. Therefore, this paper presents a design and development of the RTI system to study and characterize the behaviour of radio waves propagation when phantoms with different dimensions are present within the monitoring area. An overview of the proposed RTI system, the arrangement of sensor arrays and a few factors that should take into consideration when using the RF sensors such as ground effects, near field and far-field region of an antenna have been discussed in this paper. Also, the details of the experimental design have been explained. Based on the results obtained from the experiments, the RSSI value decreases gradually as the dimension of phantoms with water medium increases. This is because when the diameter of a phantom with water medium increased, the water content inside the phantom also increased. Also, water is a high-attenuating medium and its dielectric constant is 80. Therefore, when the diameter of a phantom with water medium increased, the energy of the EM waves is absorbed and scattered more. This caused the attenuation of EM waves increased and resulted in lower RSSI value.
format	Article
author	Lee, C. C. Rahiman, Mohod Hafiz Fazalul Abdul Rahim, Ruzairi A. Saad, F. S.
author_facet	Lee, C. C. Rahiman, Mohod Hafiz Fazalul Abdul Rahim, Ruzairi A. Saad, F. S.
author_sort	Lee, C. C.
title	Design and development of radio tomographic imaging system
title_short	Design and development of radio tomographic imaging system
title_full	Design and development of radio tomographic imaging system
title_fullStr	Design and development of radio tomographic imaging system
title_full_unstemmed	Design and development of radio tomographic imaging system
title_sort	design and development of radio tomographic imaging system
publisher	Malaysian Society for Computed Tomography & Imaging Technology (MyCT)
publishDate	2021
url	http://eprints.utm.my/id/eprint/97262/1/RuzairiAbdulRahim2021_DesignandDevelopmentofRadiouTomographic.pdf http://eprints.utm.my/id/eprint/97262/ http://www.tssa.my/index.php/jtssa/article/view/161
_version_	1745562359112400896
score	13.211869

Design and development of radio tomographic imaging system

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