Multiple-window cepstrum analysis for estimation of periodicity
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
- Matematisk statistik
- Statistical Signal Processing Group
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