Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10368927 | Digital Signal Processing | 2005 | 22 Pages |
Abstract
This paper provides a rigorous theory for analysis of quantization effects and optimum filter bank design in quantized multidimensional subband filter banks. Each pdf-optimized quantizer is modeled by a nonlinear gain-plus-additive uncorrelated noise and embedded into the subband structure. Using polyphase decomposition of the analysis/synthesis filter banks, we derive the exact expression for the output mean square quantization error. Based on the minimization of the output mean square error, the technique for optimal filter design methodology is developed. Numerical design examples for optimum nonseparable paraunitary and biorthogonal filter banks are presented with a quincunx subsampling lattice.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Kyusik Park, Jaehyun Park,