Parity-Check Matrix Calculation for Paraunitary Oversampled DFT Filter Banks

  • W. F. McGee
  • Published 2008 in IEEE Transactions on Signal Processing


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.

DOI: 10.1109/TSP.2009.2027459

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Cite this paper

@article{McGee2008ParityCheckMC, title={Parity-Check Matrix Calculation for Paraunitary Oversampled DFT Filter Banks}, author={W. F. McGee}, journal={IEEE Transactions on Signal Processing}, year={2008}, volume={56}, pages={5277-5283} }