Automatic Smoothing of Periodograms
2006 (English)In: Proceedings of the 2006 IEEE International Conference on Acoustics, Speech, and Signal Processing: May 14-19, 2006, Toulouse, France, 2006Conference paper (Refereed)
Thresholding the cepstrum associated with the periodogram is a smoothing technique that appears to be very useful for variance reduction. Here the thresholding is performed via the methods SThresh and EbayesThresh. They both work fine in the broadband spectra case, even if some of the data is missing. The SThresh method appears to be more efficient as it shows a smaller variance and is faster computationally. The smoothing methods are also shown to perform well on a real-life broadband signal.
Place, publisher, year, edition, pages
Variance reduction, smoothing, thresholding, missing data
IdentifiersURN: urn:nbn:se:uu:diva-83442OAI: oai:DiVA.org:uu-83442DiVA: diva2:111350