Abstract
A lattice structure and an algorithm are presented for the design of two-channel QMF (quadrature mirror filter) banks, satisfying a sufficient condition for perfect reconstruction. The structure inherently has the perfect-reconstruction property, while the algorithm ensures a good stopband attenuation for each of the analysis filters. Implementations of such lattice structures are robust in the sense that the perfect-reconstruction property is preserved in spite of coefficient quantization. The lattice structure has the hierarchical property that a higher order perfect-reconstruction QMF bank can be obtained from a lower order perfect-reconstruction QMF bank, simply by adding more lattice sections. Several numerical examples are provided in the form of design tables.
Keywords
Quadrature mirror filterLattice (music)StopbandAlgorithmFilter bankMathematicsComputer scienceChannel (broadcasting)Pure mathematicsPrototype filterBand-pass filterBandwidth (computing)Low-pass filterElectronic engineeringEngineeringPhysicsAcousticsTelecommunications
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Publication Info
- Year
- 1988
- Type
- article
- Volume
- 36
- Issue
- 1
- Pages
- 81-94
- Citations
- 327
- Access
- Closed
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Cite This
P. P. Vaidyanathan,
P.-Q. Hoang
(1988).
Lattice structures for optimal design and robust implementation of two-channel perfect-reconstruction QMF banks.
IEEE Transactions on Acoustics Speech and Signal Processing
, 36
(1)
, 81-94.
https://doi.org/10.1109/29.1491
Identifiers
- DOI
- 10.1109/29.1491