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| 基于Hilbert谱的心率变异信号时频分析方法 | |
| 引用本文： | 董红生,张爱华,邱天爽,郝晓弘. 基于Hilbert谱的心率变异信号时频分析方法[J]. 仪器仪表学报, 2011, 32(2) |
| 作者姓名： | 董红生 张爱华 邱天爽 郝晓弘 |
| 作者单位： | 1. 兰州理工大学电信学院,兰州,730050;兰州工业高等专科学校电气工程系,兰州,730050 2. 兰州理工大学电信学院,兰州,730050 3. 大连理工大学电信学院,大连,116024 |
| 基金项目： | 国家自然科学基金(30670529)资助项目 |
| 摘 要： | 心率变异性(heart rate variability,HRV)信号的频域分析方法是用来表征自主神经调控信息的基本方法。为了评估自主神经系统功能及对心血管活动的影响,提出一种基于Hilbert时频谱的HRV信号的时频特征提取和分析的新方法。对HRV信号进行希尔伯特-黄变换(Hilbert-Huang transform,HHT)以获得HRV信号Hilbert时频谱,依据短时程HRV信号的线性频域分析指标,得到不同生理频带的Hilbert能量棒形图,提取总能量、各生理频带的能量和其归一化能量以及生理频段的能量比值作为评价心率变异性的时频特征。对MIT-BIH数据库的年轻人、老年人样本和健康人、心衰病人样本的HRV信号分析表明,基于Hilbert谱的时频特征的区分性能好,有较清晰的生理意义,能反映人的生理病理变化,为短时程HRV信号分析提供了一种有效方法。 |
| 关 键 词： | 心率变异性 自主神经系统 Hilbert时频谱 时频特征 |
Time-frequency analysis method of heart rate variability signal based on the Hilbert spectrum |
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| Dong Hongsheng,Zhang Aihua,Qiu Tianshuang,Hao Xiaohong. Time-frequency analysis method of heart rate variability signal based on the Hilbert spectrum[J]. Chinese Journal of Scientific Instrument, 2011, 32(2) | |
| Authors: | Dong Hongsheng Zhang Aihua Qiu Tianshuang Hao Xiaohong |
| Affiliation: | Dong Hongsheng1,2,Zhang Aihua1,Qiu Tianshuang3,Hao Xiaohong1(1 College of Electrical and Information Engineering,Lanzhou University of Technology,Lanzhou 730050,China,2 Electrical Engineering Department,Lanzhou Polytechnic College,3 College of Electrical and Information Engineering,Dalian University of Technology,Dalian 116024,China) |
| Abstract: | 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 i... |
| Keywords: | heart rate variability(HRV) autonomic nervous system(ANS) Hilbert time-frequency spectrum time-frequency feature |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |