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Interference Detection and Signal Quality Assessment of Pulse Signals / 中国医疗器械杂志
Chinese Journal of Medical Instrumentation ; (6): 235-239, 2015.
Artículo en Chino | WPRIM | ID: wpr-265654
ABSTRACT
Pulse signal contains a wealth of biological and pathological information. However, it is susceptible to the influence of various factors which results in poor signal quality, and causes the device to generate false alarms. First the pulse signals are processing into discrete symbols, and then compare the test signal with the pulse template by using Dynamic Time Warping (DTW) to get the threshold for which can be used to find the interference segment of the test signal. By analyzing the DTW distance of the pulse signal, we can get the interference degree of the signal, then the quality level of the plus signal can be defined by the relationship between the interference degree and quality of the signal. The 1 055 group pulse signals provided by MIMIC II physiological database are used to train and test the signal quality assessment algorithms, and compared with other existing algorithms. The results show that the algorithms can accurately detect interference segments in pulse signal and reflect the quality of it.
Asunto(s)
Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Pulso Arterial / Algoritmos / Procesamiento de Señales Asistido por Computador / Frecuencia Cardíaca Tipo de estudio: Estudio diagnóstico Límite: Humanos Idioma: Chino Revista: Chinese Journal of Medical Instrumentation Año: 2015 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Pulso Arterial / Algoritmos / Procesamiento de Señales Asistido por Computador / Frecuencia Cardíaca Tipo de estudio: Estudio diagnóstico Límite: Humanos Idioma: Chino Revista: Chinese Journal of Medical Instrumentation Año: 2015 Tipo del documento: Artículo