Electrical Tomography Reconstruction Using Reconfigurable Waveforms in a FPGA

The principal objective of this research is to conceive a mobile system based on electrical tomography for subsurface imaging and monitoring in order to enable simultaneous recording of electrical potentials of cardiac and pulmonary activity. For an exploration of excitation waveforms in electrical...

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Main Authors: Andres Vejar, Tomasz Rymarczyk
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/9/3272
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author Andres Vejar
Tomasz Rymarczyk
author_facet Andres Vejar
Tomasz Rymarczyk
author_sort Andres Vejar
collection DOAJ
description The principal objective of this research is to conceive a mobile system based on electrical tomography for subsurface imaging and monitoring in order to enable simultaneous recording of electrical potentials of cardiac and pulmonary activity. For an exploration of excitation waveforms in electrical tomography, specialized hardware is required. As the main principle of tomography is the measurement of electrical perturbations on an unknown object, it is crucial to synchronize excitation and sensing processes in a very precise way for the purpose of acquiring meaningful data. To cope with this problem, an FPGA device is used, with an architecture that allows us to trigger excitation signals and to read sensed data simultaneously via independent processes that share the same clock. In this way, waveform reconfiguration on frequency and shape can be provided and studied. The system is connected to a standard microcontroller SoC with a simple API that allows for IoT capabilities for on-line operation and tracking, given that the design is targeted for in vivo medical monitoring. As a result of the research work, a measuring device was developed, the surface data analyzed and the image was reconstructed using the selected configuration.
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spelling doaj.art-15f42df64cd242f0a85bb5d841407ef02023-11-21T18:54:56ZengMDPI AGSensors1424-82202021-05-01219327210.3390/s21093272Electrical Tomography Reconstruction Using Reconfigurable Waveforms in a FPGAAndres Vejar0Tomasz Rymarczyk1Institute of Computer Science and Innovative Technologies, University of Economics and Innovation in Lublin, 20-209 Lublin, PolandInstitute of Computer Science and Innovative Technologies, University of Economics and Innovation in Lublin, 20-209 Lublin, PolandThe principal objective of this research is to conceive a mobile system based on electrical tomography for subsurface imaging and monitoring in order to enable simultaneous recording of electrical potentials of cardiac and pulmonary activity. For an exploration of excitation waveforms in electrical tomography, specialized hardware is required. As the main principle of tomography is the measurement of electrical perturbations on an unknown object, it is crucial to synchronize excitation and sensing processes in a very precise way for the purpose of acquiring meaningful data. To cope with this problem, an FPGA device is used, with an architecture that allows us to trigger excitation signals and to read sensed data simultaneously via independent processes that share the same clock. In this way, waveform reconfiguration on frequency and shape can be provided and studied. The system is connected to a standard microcontroller SoC with a simple API that allows for IoT capabilities for on-line operation and tracking, given that the design is targeted for in vivo medical monitoring. As a result of the research work, a measuring device was developed, the surface data analyzed and the image was reconstructed using the selected configuration.https://www.mdpi.com/1424-8220/21/9/3272electrical tomographyFPGApotential profiletomographic imaging
spellingShingle Andres Vejar
Tomasz Rymarczyk
Electrical Tomography Reconstruction Using Reconfigurable Waveforms in a FPGA
Sensors
electrical tomography
FPGA
potential profile
tomographic imaging
title Electrical Tomography Reconstruction Using Reconfigurable Waveforms in a FPGA
title_full Electrical Tomography Reconstruction Using Reconfigurable Waveforms in a FPGA
title_fullStr Electrical Tomography Reconstruction Using Reconfigurable Waveforms in a FPGA
title_full_unstemmed Electrical Tomography Reconstruction Using Reconfigurable Waveforms in a FPGA
title_short Electrical Tomography Reconstruction Using Reconfigurable Waveforms in a FPGA
title_sort electrical tomography reconstruction using reconfigurable waveforms in a fpga
topic electrical tomography
FPGA
potential profile
tomographic imaging
url https://www.mdpi.com/1424-8220/21/9/3272
work_keys_str_mv AT andresvejar electricaltomographyreconstructionusingreconfigurablewaveformsinafpga
AT tomaszrymarczyk electricaltomographyreconstructionusingreconfigurablewaveformsinafpga