TY - JOUR
T1 - Parity-check matrix calculation for paraunitary oversampled DFT filter banks
AU - Karp, Tanja
AU - Kieffer, Michel
AU - Duhamel, Pierre
PY - 2008
Y1 - 2008
N2 - Joint source-channel coding schemes based on oversampled filter banks were recently proposed. Oversampled filter banks are considered as error-correcting codes, extending the notion of code subspace, parity-check matrix, and syndrome to the domain of real and complex numbers. We here present an efficient calculation and implementation of the parity-check polynomial matrices for oversampled discrete Fourier transform (DFT) filter banks. If desired, the calculation of the parity-check polynomials can be performed as part of the prototype filter design procedure. We compare our method to those previously presented in the literature.
AB - Joint source-channel coding schemes based on oversampled filter banks were recently proposed. Oversampled filter banks are considered as error-correcting codes, extending the notion of code subspace, parity-check matrix, and syndrome to the domain of real and complex numbers. We here present an efficient calculation and implementation of the parity-check polynomial matrices for oversampled discrete Fourier transform (DFT) filter banks. If desired, the calculation of the parity-check polynomials can be performed as part of the prototype filter design procedure. We compare our method to those previously presented in the literature.
KW - Joint source-channel coding
KW - Oversampled discrete Fourier transform (DFT) filter banks
KW - Parity-check matrix
UR - http://www.scopus.com/inward/record.url?scp=54749095618&partnerID=8YFLogxK
U2 - 10.1109/TSP.2008.928934
DO - 10.1109/TSP.2008.928934
M3 - Article
AN - SCOPUS:54749095618
SN - 1053-587X
VL - 56
SP - 5277
EP - 5283
JO - IEEE Transactions on Signal Processing
JF - IEEE Transactions on Signal Processing
IS - 10 II
ER -