TY - JOUR
T1 - A new approach for time-frequency analysis of heart rate variability and assessment of time-frequency representations
AU - Chan, Hsiao Lung
AU - Huang, Hui Hsun
AU - Wu, Chien Ping
AU - Lin, Jiunn Lee
PY - 1997/1/1
Y1 - 1997/1/1
N2 - Heart rate variability signals usually contain several special characteristics and interference, such as multiple oscillations, 1/f fluctuations, transient changes, very low frequency trends, and noises. Nevertheless, the effects of these special phenomena on time-frequency signal analysis are seldom discussed. In this paper, a new approach is presented to suppress the interfering cross terms in the Wigner-Ville distribution. In comparison with various time-frequency methods, our method provides excellent cross-term suppression at the presence of multiple oscillations, 1/f characteristics, and very low frequency trends, and inherits the advantages of the Wigner-Ville distribution dealing with transient changes and noises.
AB - Heart rate variability signals usually contain several special characteristics and interference, such as multiple oscillations, 1/f fluctuations, transient changes, very low frequency trends, and noises. Nevertheless, the effects of these special phenomena on time-frequency signal analysis are seldom discussed. In this paper, a new approach is presented to suppress the interfering cross terms in the Wigner-Ville distribution. In comparison with various time-frequency methods, our method provides excellent cross-term suppression at the presence of multiple oscillations, 1/f characteristics, and very low frequency trends, and inherits the advantages of the Wigner-Ville distribution dealing with transient changes and noises.
KW - Heart rate variability
KW - Time-frequency analysis
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U2 - 10.1080/02533839.1997.9741838
DO - 10.1080/02533839.1997.9741838
M3 - Article
AN - SCOPUS:0031143268
SN - 0253-3839
VL - 20
SP - 343
EP - 353
JO - Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an
JF - Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an
IS - 3
ER -