DocumentCode
455080
Title
Automatic Smoothing of Periodograms
Author
Gudmundson, Erik ; Sandgren, Niclas ; Stoica, Petre
Author_Institution
Dept. of Inf. Technol., Uppsala Univ.
Volume
3
fYear
2006
fDate
14-19 May 2006
Abstract
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
Keywords
cepstral analysis; smoothing methods; broadband spectra; cepstrum thresholding; periodograms; real-life broadband signal; smoothing technique; variance reduction; Automatic control; Cepstrum; Control systems; Councils; Frequency; Guidelines; Information technology; Smoothing methods; Speech processing; Virtual reality;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location
Toulouse
ISSN
1520-6149
Print_ISBN
1-4244-0469-X
Type
conf
DOI
10.1109/ICASSP.2006.1660701
Filename
1660701
Link To Document