去除移动心电中运动干扰的前馈组合自适应滤波器

doi:10.3969/j.issn.1000-565X.2017.12.010

华南理工大学学报（自然科学版） ›› 2017, Vol. 45 ›› Issue (12): 65-70.doi: 10.3969/j.issn.1000-565X.2017.12.010

• 电子、通信与自动控制 • 上一篇下一篇

去除移动心电中运动干扰的前馈组合自适应滤波器

张洹千^1,2 张树林¹ 杜晓薇¹ 金庆辉¹ 李擎³ 杨坚³ 赵建龙^1†

1．中国科学院上海微系统与信息技术研究所，上海 200050; 2．中国科学院大学，北京 100049; 3．徐汇区中心医院，上海 200031

收稿日期:2017-02-17 修回日期:2017-04-19 出版日期:2017-12-25 发布日期:2017-10-31
通信作者: 赵建龙(1969-)，男，研究员，博士生导师，主要从事生物传感器研制研究． E-mail:jlzhao@mail.sim.ac.cn
作者简介:张洹千(1983-)，男，博士生，主要从事生物传感器研制研究． E-mail:huanqian．zhang@mail．sim．ac．cn
基金资助:
上海市科委基金资助项目(14521106200)

A Feed-Forward Combined Adaptive Filter for Suppressing Motion Artifact in Ambulatory Electrocardiogram

ZHANG Huan-qian^1,2 ZHANG Shu-lin¹ DU Xiao-wei¹ JIN Qing-hui¹ LI Qing³ YANG Jian³ ZHAO Jian-long¹

1.Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China; 2.University of Chinese Academy of Sciences,Beijing 100049,China; 3.Central Hospital of Xuhui District,Shanghai 200031,China

Received:2017-02-17 Revised:2017-04-19 Online:2017-12-25 Published:2017-10-31
Contact: 赵建龙(1969-)，男，研究员，博士生导师，主要从事生物传感器研制研究． E-mail:jlzhao@mail.sim.ac.cn
About author:张洹千(1983-)，男，博士生，主要从事生物传感器研制研究． E-mail:huanqian．zhang@mail．sim．ac．cn
Supported by:
Supported by the Foundation of Shanghai Municipal Science and Technology Commission(14521106200)

摘要/Abstract

摘要： 最小均方自适应滤波器( LMS-AF) 和变步长 LMS-AF( VSS-LMS-AF) 通常用来去除移动心电信号中的运动干扰．运动干扰和移动心电信号的非稳态特性会增加自适应滤波器的失调，组合自适应滤波器( C-AF) 虽具有跟踪非稳态信号的能力，但仍存在信号失真．为了进一步减小信号失真，提高去除运动干扰的能力，提出了一种前馈组合自适应滤波器( FFC-AF) ，采用参考信号对运动干扰的稳态程度进行估计，将两个并行的自适应滤波器的输出组合起来．用10 位健康志愿者的移动心电记录进行了仿真实验，以评估 FFC- AF 的性能．结果表明，文中提出的 FFC-AF 比 C-AF 具有更小的信号失真和更大的信号干扰率，可以用于移动心电信号中运动干扰的去除．

关键词: 移动心电, 运动干扰, 自适应滤波器, 信号失真, 信号干扰率

Abstract: The least mean square adaptive filter (LMS-AF) and the variable step size LMS-AF (VSS-LMS-AF) have been widely used to suppress the motion artifact (MA) from ambulatory electrocardiograms (AECG).How- ever,due to the fact that the non-stationary property of the MA and the AECG increases the mis-adjustment of fil- ters,although the combined AF (C-AF) has advantages in tracking non-stationary signals，it still suffers from a signal distortion.In order to further decrease the signal distortion and improve the MA suppression ability,a new feed-forward combined AF (FFC-AF) is proposed,in which the stationary degree of the MA is estimated by using a reference signal and two parallel AF outputs are combined.Then,a simulation experiment with the AECG re- cording on ten healthy volunteers is conducted to assess the performance of the FFC-AF.The results show that,as compared with the C-AF,the FFC-AF is of less signal distortion and larger signal artifact ratio.Therefore,it can be used to suppress the MA in the AECG.

Key words: Ambulatory Electrocardiogram, Motion Artifact, Adaptive Filter, Distortion, Signal to Artifact Ratio

张洹千张树林杜晓薇金庆辉李擎杨坚赵建龙. 去除移动心电中运动干扰的前馈组合自适应滤波器[J]. 华南理工大学学报（自然科学版）, 2017, 45(12): 65-70.

ZHANG Huan-qian ZHANG Shu-lin DU Xiao-wei JIN Qing-hui LI Qing YANG Jian ZHAO Jian-long. A Feed-Forward Combined Adaptive Filter for Suppressing Motion Artifact in Ambulatory Electrocardiogram[J]. Journal of South China University of Technology (Natural Science Edition), 2017, 45(12): 65-70.

去除移动心电中运动干扰的前馈组合自适应滤波器

A Feed-Forward Combined Adaptive Filter for Suppressing Motion Artifact in Ambulatory Electrocardiogram

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 1

编辑推荐

Metrics

本文评价