重采样对脉搏间期序列谱分析的影响

山东大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (2): 102-106.

重采样对脉搏间期序列谱分析的影响

李丽萍1,杨静2,刘常春1,刘澄玉1,张庆广1,李可1

1. 山东大学控制科学与工程学院, 山东济南 250061; 2. 山东大学计算机科学与工程学院, 山东济南 250101

收稿日期:2010-11-22 出版日期:2011-04-16 发布日期:2010-11-22
作者简介:李丽萍（1982- ），女，山东青岛人，博士研究生，主要研究方向为生物医学信号处理.Email: liliping@mail.sdu.edu.cn
基金资助:
国家高技术研究发展计划（863计划）资助项目(2006AA02Z4D9, 2009AA02Z408)

The effect of re-sampling on spectral analysis of pulse interval series

LI Liping1, YANG Jing2, LIU Changchun1, LIU Chengyu1, ZHANG Qingguang1, LI Ke1

1. School of Control Science and Engineering, Shandong University, Jinan 250061, China;
2. School of Computer Science and Technology, Shandong University, Jinan 250101, China

Received:2010-11-22 Online:2011-04-16 Published:2010-11-22

摘要/Abstract

摘要：

研究了重采样对脉搏间期序列谱分析的影响,提出以平均脉率为重采样率对脉搏间期序列进行重采样,为脉率变异性分析提供理论支持。采用最近邻点插值、分段线性插值、分段三次Hermite插值和三次样条插值4种方法对仿真脉搏间期序列重采样,并对比相应的Welch周期图法和AR(Autoregressive)自回归模型法的谱分析结果。提出以平均脉率作为重采样率,并与其他多个重采样率进行比较。结果表明,以平均脉率为重采样率,采用三次样条插值方法及Welch周期图法进行谱分析时,所得误差最小,适合用于脉搏间期序列的谱分析。采用该方法对30例健康者和30例冠心病患者的脉搏间期序列进行了谱分析,结果显示冠心病患者的谱分析结果显著低于健康者,验证了本方法的有效性。

关键词: 非均匀采样, 脉搏信号, 重采样, 谱分析, 脉率变异性

Abstract:

The effect of resampling on spectral analysis of pulse interval series was systematically analyzed. The method of the mean pulse rate as the resampling rate was proposed, which could provide theoretical support for pulse rate variability. Four methods, the nearest neighbor interpolation, piecewise linear interpolation, piecewise cubic Hermite interpolation and cubic spline interpolation, were applied to resample the simulated pulse interval series. The Welch periodogram and the Autoregressive model were used for spectral analysis with several resampling rates compared. Results showed that the combination of cubic spline interpolation and the Welch periodogram to be an optimal choice for least errors and spectral analysis of pulse interval series. And the mean pulse rate was the optimal resampling rate. Thirty healthy subjects and thirty subjects with coronary heart disease (CHD) were tested to verify the effectiveness of the proposed methods. Results showed that spectral analysis of the subjects with CHD was significantly lower than that of the healthy subjects.

Key words: unevenly sampling, pulse signal, re-sampling, spectral analysis, pulse rate variability

李丽萍1,杨静2,刘常春1,刘澄玉1,张庆广1,李可1. 重采样对脉搏间期序列谱分析的影响[J]. 山东大学学报(工学版), 2011, 41(2): 102-106.

LI Liping1, YANG Jing2, LIU Changchun1, LIU Chengyu1, ZHANG Qingguang1, LI Ke1. The effect of re-sampling on spectral analysis of pulse interval series[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2011, 41(2): 102-106.

参考文献

多维度评价

Viewed

Full text

Abstract

Cited

Shared

Discussed

本文评价

推荐阅读 10

[1]	王素玉,艾兴,赵军,李作丽,刘增文 . 高速立铣3Cr2Mo模具钢切削力建模及预测[J]. 山东大学学报(工学版), 2006, 36(1): 1 -5 .
[2]	李侃 . 嵌入式相贯线焊接控制系统开发与实现[J]. 山东大学学报(工学版), 2008, 38(4): 37 -41 .
[3]	孔祥臻,刘延俊,王勇,赵秀华 . 气动比例阀的死区补偿与仿真[J]. 山东大学学报(工学版), 2006, 36(1): 99 -102 .
[4]	李梁，罗奇鸣，陈恩红. 对象级搜索中基于图的对象排序模型（英文）[J]. 山东大学学报(工学版), 2009, 39(1): 15 -21 .
[5]	陈瑞,李红伟,田靖. 磁极数对径向磁轴承承载力的影响[J]. 山东大学学报(工学版), 2018, 48(2): 81 -85 .
[6]	李可,刘常春,李同磊 . 一种改进的最大互信息医学图像配准算法[J]. 山东大学学报(工学版), 2006, 36(2): 107 -110 .
[7]	季涛,高旭,孙同景,薛永端,徐丙垠 . 铁路10 kV自闭/贯通线路故障行波特征分析[J]. 山东大学学报(工学版), 2006, 36(2): 111 -116 .
[8]	浦剑1 ,张军平1 ，黄华2 . 超分辨率算法研究综述[J]. 山东大学学报(工学版), 2009, 39(1): 27 -32 .
[9]	王丽君,黄奇成,王兆旭 . 敏感性问题中的均方误差与模型比较[J]. 山东大学学报(工学版), 2006, 36(6): 51 -56 .
[10]	孙殿柱,朱昌志,李延瑞 . 散乱点云边界特征快速提取算法[J]. 山东大学学报(工学版), 2009, 39(1): 84 -86 .