Generalizing symmetric extension: multiple nonuniform channels and multidimensional nonseparable IIR filter banks

The symmetric extension method for the implementation of size-limited filter banks is generalized to allow for M-channel nonuniform filter banks, where M>or=2. Also, the symmetry condition on the analysis-synthesis filters is relaxed. A closed-form solution is presented for calculating initial co...

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Hauptverfasser: Bamberger, R.H., Eddins, S.L., Nuri, V.
Format: Tagungsbericht
Sprache:eng
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Zusammenfassung:The symmetric extension method for the implementation of size-limited filter banks is generalized to allow for M-channel nonuniform filter banks, where M>or=2. Also, the symmetry condition on the analysis-synthesis filters is relaxed. A closed-form solution is presented for calculating initial conditions for symmetric extension IIR (infinite impulse response) filter banks. Unlike a previous solution, the new IIR method may be directly extended to two-dimensional nonseparable filter banks.< >
DOI:10.1109/ISCAS.1992.230053