Narrowband array processing beamforming technique for electrical impedance tomography
Electrical impedance tomography (EIT) has a large potential as a two dimensional imaging technique and is gaining attention among researchers across various fields of engineering. Beamforming techniques stem from the array signal processing field and is used for spatial filtering of array data to ev...
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my.uniten.dspace-242392023-05-29T15:22:24Z Narrowband array processing beamforming technique for electrical impedance tomography Chitturi V. Farrukh N. 56938688700 56272534200 Electrical impedance tomography (EIT) has a large potential as a two dimensional imaging technique and is gaining attention among researchers across various fields of engineering. Beamforming techniques stem from the array signal processing field and is used for spatial filtering of array data to evaluate the location of objects. In this work the circular electrodes are treated as an array of sensors and beamforming technique is used to localize the object(s) in an electrical field. The conductivity distributions within a test tank is obtained by an EIT system in terms of electrode voltages. These voltages are then interpolated using elliptic partial differential equations. Finally, a narrowband beamformer detects the peak in the output response signal to localize the test object(s). Test results show that the beamforming technique can be used as a secondary method that may provide complementary information about accurate position of the test object(s) using an eight electrode EIT system. This method could possibly open new avenues for spatial EIT data filtering techniques with an understanding that the inverse problem is more likely considered here as a source localization algorithm instead as an image reconstruction algorithm. � 2019 Chitturi, Farrukh. Final 2023-05-29T07:22:23Z 2023-05-29T07:22:23Z 2019 Article 10.2478/joeb-2019-0014 2-s2.0-85077924851 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077924851&doi=10.2478%2fjoeb-2019-0014&partnerID=40&md5=4eb2b544c04b9a336a963e6e77157dc5 https://irepository.uniten.edu.my/handle/123456789/24239 10 1 96 102 All Open Access, Gold, Green Universitetet i Oslo Scopus |
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Electrical impedance tomography (EIT) has a large potential as a two dimensional imaging technique and is gaining attention among researchers across various fields of engineering. Beamforming techniques stem from the array signal processing field and is used for spatial filtering of array data to evaluate the location of objects. In this work the circular electrodes are treated as an array of sensors and beamforming technique is used to localize the object(s) in an electrical field. The conductivity distributions within a test tank is obtained by an EIT system in terms of electrode voltages. These voltages are then interpolated using elliptic partial differential equations. Finally, a narrowband beamformer detects the peak in the output response signal to localize the test object(s). Test results show that the beamforming technique can be used as a secondary method that may provide complementary information about accurate position of the test object(s) using an eight electrode EIT system. This method could possibly open new avenues for spatial EIT data filtering techniques with an understanding that the inverse problem is more likely considered here as a source localization algorithm instead as an image reconstruction algorithm. � 2019 Chitturi, Farrukh. |
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56938688700 Chitturi V. Farrukh N. |
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Chitturi V. Farrukh N. |
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Chitturi V. Farrukh N. Narrowband array processing beamforming technique for electrical impedance tomography |
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Chitturi V. |
title |
Narrowband array processing beamforming technique for electrical impedance tomography |
title_short |
Narrowband array processing beamforming technique for electrical impedance tomography |
title_full |
Narrowband array processing beamforming technique for electrical impedance tomography |
title_fullStr |
Narrowband array processing beamforming technique for electrical impedance tomography |
title_full_unstemmed |
Narrowband array processing beamforming technique for electrical impedance tomography |
title_sort |
narrowband array processing beamforming technique for electrical impedance tomography |
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Universitetet i Oslo |
publishDate |
2023 |
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