A algorithm for spectral analysis of instantaneous heart rate
This work studied the lomb method for investigating the spectral behavior of instantaneous heart rate(IHR), and the ECG recordings were taken from the patients suffered from obstructive sleep apnea syndrome(osas). In order to derive the characteristic spectrum of osas patient and get over the inherent defect of the lomb method, the work present a new algorithm, which first removed the rhythmic oscillations(mainly respiratory oscillations)by the empirical mode decomposition(EMD) method, and then investigated the spectrum of the residual component of IHR. The results showed that the method can effectively get over the disturbance of rhythmic oscillations of IHR, and distinctly reflect the characteristic spectrum of osas patient. On the other hand, the work post that there was an excess power in a frequency band between 0.02Hz and 0.04Hz when osas patient is asleep during apnea episodes, and this powers was maximum in most case.
instantaneous heart rate lomb periodograms osas empirical mode decomposition
XiaoFang Liu WenLong Xu YongWu Li
Dept. of Biomedical Engineering China JiLiang University HangZhou, china Institute of Medical Instrument Sir Run Run Shaw Hospital, Zhejiang University Hangzhou Zhejiang
国际会议
上海
英文
2202-2205
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）