中国医疗设备2012，Vol.27Issue(7)：44-46,3.DOI:10.3969/j.issn.1674-1633.2012.07.011
基于HHT的胃电信号处理
Gastric Electrical Signal Processing Based on Hilbert-Huang Transformation
续大伟 1史学涛2
作者信息
- 1. 第四军医大学,生物医学工程系,陕西,西安,710032
- 2. 陕西省肿瘤医院,设备科,陕西,西安,710061
- 折叠
摘要
Abstract
In this paper, the Hilbert-Huang Transformation (HHT) method is adopted to deal with the gastric electric signal collected from patient bodies. Nonlinear and non-stationary original gastric electric signal series can be decomposed by using the empirical mode decomposition method(EMD) into a number of intrinsic mode function(IMF)components. Under the Hilbert transformation process, instantaneous frequency are effectively extracted. Selected the related frequency, such as 2～4cpm, then reconstructed the signal. This is a new and applicable time series analysis method based on mode decomposition. This method can accomplish the extraction of gastric electric signal and remove the disturbances such as blood flow and breathing. HHT is an easy and effective method to do EGG analysis in clinical diagnosis.关键词
胃电图仪/胃电图/Hilbert-Huang变换/经验模态分解Key words
electrogastrogram system/ electrogastrogram/ Hibert-Huang transformation/ empirical mode decomposition分类
医药卫生引用本文复制引用
续大伟,史学涛..基于HHT的胃电信号处理[J].中国医疗设备,2012,27(7):44-46,3.
