Implementation of an active-filtering circuit for electroencephalographic signal acquisition using an 8-bit microcontroller

Jose Perez, Jimmy Tarrillo

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

1 Cita (Scopus)

Resumen

Electroencephalographic signals are employed to analyze brain activity. By being low voltage level signals, its digitalization represents a big challenge. Currently, there are several proposals and BCIs, many of them based on complicated and expensive ADCs and DSPs to collect and digitally process data. Hence, this paper presents the design and implementation of an active-filtering circuit for electroencephalographic signal acquisition in a frequency range between 0.15 Hz and 50Hz using an 8-bit AVR RISC-based microcontroller. This hardware is composed of four fundamental elements: Reception block, filtering circuit, ADC adaptation circuit, and digital communication system. This paper offers the results of board design, emulation, and implementation concerning the amplitude spectrum and its SNR value.

Idioma originalInglés
Título de la publicación alojadaProceedings of the 2020 IEEE Dallas Circuits and Systems Conference, DCAS 2020
EditorialInstitute of Electrical and Electronics Engineers Inc.
ISBN (versión digital)9781728185101
DOI
EstadoPublicada - 15 nov. 2020
Evento14th IEEE Dallas Circuits and Systems Conference, DCAS 2020 - Virtual, Richardson, Estados Unidos
Duración: 15 nov. 202016 nov. 2020

Serie de la publicación

NombreProceedings of the 2020 IEEE Dallas Circuits and Systems Conference, DCAS 2020

Conferencia

Conferencia14th IEEE Dallas Circuits and Systems Conference, DCAS 2020
País/TerritorioEstados Unidos
CiudadVirtual, Richardson
Período15/11/2016/11/20

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