期刊论文

Research on photoplethysmography denoising method based on whale optimization algorithm variational mode decomposithon combined with wavelet threshold

中文

生物医学工程研究

Journal of Biomedical Engineering Research

1672-6278

2024

43

4

331-337

10.19529/j.cnki.1672-6278.2024.04.09

湖南省中医药管理局项目(A2023048)。

本校为第一机构

为探究光电容积脉搏波(photoplethysmography, PPG)的降噪方法,本研究提出了一种基于鲸鱼优化算法(whale optimization algorithm, WOA)、变分模态分解(variatio...展开更多 为探究光电容积脉搏波(photoplethysmography, PPG)的降噪方法,本研究提出了一种基于鲸鱼优化算法(whale optimization algorithm, WOA)、变分模态分解(variational mode decomposition, VMD)和小波阈值(wavelet threshold, WT)结合的降噪方法。首先,通过WOA选取对VMD影响较大的模态分解数K和惩罚因子α;其次,利用VMD将含噪信号进行分解,根据相关系数去除噪声分量,保留有用信号分量,再利用WT对剩余的分量降噪;最后,重构得到...

To explore the noise reduction method of photoplethysmography(PPG),we proposed a novel algorithm based on whale optimization algorithm(WOA),variational mode decomposithon(VMD)and wavelet threshold(WT).Firstly,the mode decomposition number K and penalty factorαwhich had ...MORE To explore the noise reduction method of photoplethysmography(PPG),we proposed a novel algorithm based on whale optimization algorithm(WOA),variational mode decomposithon(VMD)and wavelet threshold(WT).Firstly,the mode decomposition number K and penalty factorαwhich had ...