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.
|頁（從 - 到）||343-353|
|期刊||Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an|
|出版狀態||已發佈 - 一月 1 1997|
ASJC Scopus subject areas
Chan, H. L., Huang, H. H., Wu, C. P., & Lin, J. L. (1997). A new approach for time-frequency analysis of heart rate variability and assessment of time-frequency representations. Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an, 20(3), 343-353. https://doi.org/10.1080/02533839.1997.9741838