An efficient method for designing low-delay nonuniform oversampled M-channel filterbanks (CROSBI ID 537437)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Bregović, Robert ; Dumitrescu, Bogdan ; Saramaki, Tapio
engleski
An efficient method for designing low-delay nonuniform oversampled M-channel filterbanks
This paper proposes an efficient method for designing oversampled nearly perfect reconstruction (NPR) Mchannel nonuniform filterbanks (NUFBs) with an arbitrary delay. NUFBs considered in this paper are generated by joining two or more uniform sections with a transition filter (TF) in between every two adjacent sections. The uniform sections are generated by using the generalized DFT (GDFT) modulation of one prototype filter per section and are designed by using semidefinite programming and/or second-order cone programming. The complex-valued TFs are designed by utilizing the frequency-sampling technique (FST) for designing FIR filters. The performance of the proposed design method is shown by means of an example.
nonuniform filterbanks; low-delay; GDFT modulation; frequency-sampling technique
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Podaci o prilogu
58-62.
2007.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 5th International Symposium on Image and Signal Processing and Analysis
Petrou, Maria ; Saramaki, Tapio ; Ercil, Aytul, Lončarić, Sven
Istanbul: Bogazici University, Istanbul, Turkey and Faculty of Electrical Engineering and Computing, University of Zagreb, Croatia
953184117-7
1845-5956
Podaci o skupu
The 5th International Symposium on Image and Signal Processing and Analysis
predavanje
27.09.2007-29.09.2007
Istanbul, Turska