Revista UIS Ingenierías

Vol. 12 Núm. 2 (2013): Revista UIS Ingenierías
Artículos

Tratamiento de rizados en la estimación de la densidad espectral de potencia de la señal de ritmo cardiaco

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  • Javier Enrique González-Barajas,
  • Edwin Francisco-Forero,
  • Iván Marino-Martinez
Javier Enrique González-Barajas
Universidad Santo Tomás
Biografía
Edwin Francisco-Forero
Universidad Santo Tomás
Biografía
Iván Marino-Martinez
Universidad Santo Tomás
Biografía

Publicado 2013-11-23

Palabras clave

  • Desidad Espectral de Potencia,
  • muestreo irregular,
  • tiempos RR

Cómo citar

González-Barajas, J. E., Francisco-Forero, E., & Marino-Martinez, I. (2013). Tratamiento de rizados en la estimación de la densidad espectral de potencia de la señal de ritmo cardiaco. Revista UIS Ingenierías, 12(2), 17–27. Recuperado a partir de https://revistas.uis.edu.co/index.php/revistauisingenierias/article/view/17-27
Aviso de derechos de autor/a

Resumen

El análisis de la Variabilidad de la Frecuencia cardiaca (VFC) está basado en el estudio de los cambios detectados en cada ciclo cardiaco. Estos cambios son estudiados a partir de la señal de ritmo cardiaco y se compone de las medidas adquiridas del tiempo entre las ondas R de la señal electrocardiográfica (ECG). El análisis de la señal de ritmo cardiaco está basado en dos tipos de métodos: cálculos estadísticos (dominio del tiempo) y estimación de la densidad espectral de potencia (Dominio de la frecuencia). La Densidad Espectral de Potencia (PSD) de la señal de ritmo cardiaco puede realizarse a través de métodos aplicados a señales con un tiempo de muestreo irregular. Para este caso, la literatura ha registrado el uso del método de Lomb. El principal objetivo de este trabajo es la presentación de los resultados obtenidos de la implementación de la técnica basada en el promediado de espectros para realizar un tratamiento de la PSD estimada a partir de la señal de ritmo cardiaco. El procedimiento está basado en tomar señales de ritmo cardiaco adquiridas de señales electrocardiograficas con ritmo sinusal normal de la base de datos “Physionet”. Los resultados obtenidos permitieron ilustrar una atenuación del risado de la PSD estimada.

 

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