| 高血压病脉象信号的时频分析 |
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| 引用本文： | 李墅娜,宋文爱.高血压病脉象信号的时频分析[J].中北大学学报,2009,30(3):238-240. |
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| 作者姓名： | 李墅娜 宋文爱 |
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| 作者单位： | 李墅娜(中北大学信息与通信工程学院,山西,太原,030051);宋文爱(中北大学软件职业技术学院,山西,太原,030051) |
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| 基金项目： | 山西省自然科学基金资助项目 |
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| 摘 要： | 将人体作为一个复杂的系统,采用给脉搏以固定激励的方法,测出人体系统在此激励下的输出.运用时频分析法分析了无高血压病症和有高血压病症的脉象信号的时频谱分布和功率能量比分布特点.实验结果表明,无高血压的脉象信号能量主要集中在5 Hz以下的主波峰中,高于5 Hz的能量只占很小的部分,而病脉的频率范围比正常脉较宽,尤其中高频部分较宽.时频分析方法可以很好地区分无高血压病症和有高血压病症的脉象信号.
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| 关 键 词： | 脉象信号 时频分析 能量分布 频谱分析 |
Time-Frequency Analysis for Pulse Signal of Hypertension |
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| LI Shu-na,SONG Wen-ai.Time-Frequency Analysis for Pulse Signal of Hypertension[J].Journal of North University of China,2009,30(3):238-240. |
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| Authors: | LI Shu-na SONG Wen-ai |
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| Affiliation: | 1.School of Information and Communication Engineering;North University of China;Taiyuan 030051;China;2.College of Software Vocational and Technical Education;China |
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| Abstract: | The human body was considered as a complex system,and the output of body system was tested by using regular excitation as pulse input.The distribution of time-frequency spectrum and power energy ratio for pulse signals of normal and hypertension were analyzed by time-frequency method.Experiment results indicate that,the pulse energy is focused on the main wave of frequency below 5 Hz,the pulse energy above 5 Hz is just some part of the whole energy;the frequency range of the ill pulse is wider than the norm... |
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| Keywords: | pulse signal time-frequency analysis energy distribution frequency analysis |
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