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Multiple-window cepstrum analysis for estimation of periodicity

In English

Författare

Summary, in English

Multiple windows have been used in spectrum analysis to reduce variance. In this paper, a multiple-window approach is suggested in cepstrum analysis, where the period of the system response should be estimated. The logarithm of the spectrum as well as the liftering are approximated by a division of two multiple-window spectra. The method is useful especially in the case of short periods of the periodic signal and large spectral dynamics of the other signal, i.e., the case with severe overlap in the cepstrum. Examples are given for estimation of periods of surface waves traveling around the circumference of tree trunks.

Avdelning/ar

Publiceringsår

2007

Språk

Engelska

Sidor

474-481

Publikation/Tidskrift/Serie

IEEE Transactions on Signal Processing

Volym

55

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

IEEE - Institute of Electrical and Electronics Engineers Inc.

Ämne

  • Probability Theory and Statistics

Nyckelord

  • real-valued cepstrum
  • homomorphic deconvolution
  • multiple-window spectrum analysis

Status

Published

Forskningsgrupp

  • Statistical Signal Processing Group

ISBN/ISSN/Övrigt

  • ISSN: 1053-587X