Pulse Signal Quality Estimation and Filtering Based on Cyclostationary Algorithm
10.3969/j.issn.1671-7104.2015.02.002
- VernacularTitle:基于循环平稳算法的脉搏信号质量评估与滤波
- Author:
Aihua ZHANG
1
;
Wenlong HU
;
Yongxin CHOU
Author Information
1. 兰州理工大学电气工程与信息工程学院
- Keywords:
pulse signal;
cyclostationarity;
cyclic spectrum estimation;
quality factor;
CCMF
- From:
Chinese Journal of Medical Instrumentation
2015;(2):83-86
- CountryChina
- Language:Chinese
-
Abstract:
In order to reduce the impact of various noise in pulse signal, the quality estimation and filtering algorithms based on cyclostationarity are proposed to reprocess pulse signal. First, A quality evaluation index of pulse signal which named quality factor is defined by cyclic spectrum to describe the quality variation of the pulse signal affected by noise;Second, a cyclic correlation matched filter (CCMF) is designed to remove noise. The simulation of pulse signal is produced by ourselves and noise signal is provided by MIT-BIH physiological database are used to test the function of proposed method, and then the method is applied to the actual pulse signal. The results show that the quality factor can accurately reflect the quality of the pulse signal and the CCMF can effectively remove noise from pulse signal.
