Time-varying AR modeling of heart wall vibration

Hiroshi Kanai, Noriyoshi Chubachi, Yoshiro Koiwa

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)


This study proposes a new approach of modelling to estimate the spectrum transition of the nonstationary signals with the use of a linear algorithm without assuming any basic functions. In particular, the spectrum transition constraint is employed. By using this method, spectrum transition is clearly obtained during one beat period. Finally, the method proposed in this study will be used as a tool for noninvasive acoustic diagnosis of heart diseases in the near future.

Original languageEnglish
Pages (from-to)941-944
Number of pages4
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Publication statusPublished - 1995 Jan 1
EventProceedings of the 1995 20th International Conference on Acoustics, Speech, and Signal Processing. Part 2 (of 5) - Detroit, MI, USA
Duration: 1995 May 91995 May 12

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering


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