Time-frequency analysis method of heart rate variability signal based on the Hilbert spectrum

	Time-frequency analysis method of heart rate variability signal based on the Hilbert spectrum
	Dong, Hongsheng 1,2; Zhang, Aihua 1; Qiu, Tianshuang 3; Hao, Xiaohong 1
刊名	Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument
	2011-02-01
卷号	32 期号:2 页码:271-278
关键词	Cardiology Heart Mathematical transformations Signal analysis Spectroscopy Spectrum analysis Autonomic nervous system Heart rate variability Heart rate variability signals Hilbert Huang transforms Hilbert time-frequency spectrums Pathological changes Time frequency features Time-frequency analysis methods
ISSN号	02543087
英文摘要	Frequency domain analysis for heart rate variability (HRV) signal is the basic method in testing autonomic nervous activity. In order to assess the function of autonomic nervous system and its influence on cardiovascular activity, a new method of time-frequency feature extraction and analysis of HRV signal is proposed based on the Hilbert spectrum. Hilbert-Huang transform (HHT) is performed on the HRV signal to get Hilbert time-frequency spectrum; according to the characteristic indexes of short-time HRV signal in linear frequency domain, a Hilbert energy bar chart of the HRV signal for different physiological frequency bands is plotted. The total energy, the energies of different physiological frequency bands and their normalized energies, and the energy ratios of physiological frequency bands are extracted and used for evaluating the time-frequency features of the HRV signal. The new approach was applied to the HRV signals of the young, older and heart failure patients in the MIT-BIH standard database. Results show that the time-frequency features based Hilbert time-frequency spectrum have good differentiating performance and clear physiological significance, and can reflect the physiological and pathological changes of the patients, which provides an effective method for short-time HRV signal analysis.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111627]
专题	电气工程与信息工程学院
作者单位	1.College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China; 2.Electrical Engineering Department, Lanzhou Polytechnic College, Lanzhou 730050, China; 3.College of Electrical and Information Engineering, Dalian University of Technology, Dalian 116024, China
推荐引用方式 GB/T 7714	Dong, Hongsheng,Zhang, Aihua,Qiu, Tianshuang,et al. Time-frequency analysis method of heart rate variability signal based on the Hilbert spectrum[J]. Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument,2011,32(2):271-278.
APA	Dong, Hongsheng,Zhang, Aihua,Qiu, Tianshuang,&Hao, Xiaohong.(2011).Time-frequency analysis method of heart rate variability signal based on the Hilbert spectrum.Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument,32(2),271-278.
MLA	Dong, Hongsheng,et al."Time-frequency analysis method of heart rate variability signal based on the Hilbert spectrum".Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument 32.2(2011):271-278.