An alternative approach for bioimpedance measurements and data analysis
Lundi 1er avril 2019 14:00
- Duree : 1 heure
Lieu : Salle Belledonne, IMEP-LaHC, Minatec, 3, Parvis Louis Néel, Grenoble
Orateur : Giovanni RAMIREZ-CHAVARRIA (Institute of Engineering, Universidad Nacional Autónoma de México -UNAM)
This talk discusses an alternative framework for electrical impedance measurement and parametric estimation as a powerful tool to characterize biological media. The experimental setup for data acquisition uses high-throughput electronics and a fast-time and wideband signal as the input. The data analysis problem is formulated in a m odel-based approach, it transforms the frequency-domain estimation problem into a time constant domain estimation problem through the distribution of relaxation times (DRT) model. For the existence of a numerical solution, the DRT model is posed in a regularized least squares (RLS) form. The proposed methodology is first validated in numerical simulations and afterwards applied for ex-vivo biological tissue characterization and microcolloid concentration sensing. Results show that the proposed method outperforms the state-of-the-art techniques for spectral bioimpedance analysis.
http://imep-lahc.grenoble-inp.fr/en/events/seminars
Contact : daniel.bauza@grenoble-inp.fr
Discipline évènement : (Physique)
Entité organisatrice : (IMEP/LAHC)
Nature évènement : (Séminaire)
Evènement répétitif : (Séminaire IMEP-LAHC)
Site de l'évènement : Site Minatec
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