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Designing FIR perfect reconstruction systems given several of the analysis and synthesis filters

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3 Author(s)
Kofidis, E. ; Dept. of Inf., Athens Univ., Greece ; Theodoridis, S. ; Kalouptsidis, N.

This paper deals with the problem of designing an N-band maximally-decimated FIR analysis/synthesis system with the perfect-reconstruction property, when K of the filters in both the analysis and synthesis banks are selected beforehand. An algorithm for computing the N-K unknown analysis and synthesis filters is given and the solution set is completely parametrized. The parametrization leads to a ladder-type realization of the system, whose robustness in coefficient quantization and roundoff-error effects has been verified in the past. The linear-phase case is also discussed and conditions that the given synthesis filters must satisfy are stated. An example is provided to illustrate the theory

Published in:

Digital Signal Processing Proceedings, 1997. DSP 97., 1997 13th International Conference on  (Volume:2 )

Date of Conference:

2-4 Jul 1997