Multirate systems and filter banks
Multirate systems and filter banks
New results and open problems on nonuniform filter-banks
ICASSP '99 Proceedings of the Acoustics, Speech, and Signal Processing, 1999. on 1999 IEEE International Conference - Volume 03
Theory and design of a class of cosine-modulated non-uniform filter banks
ICASSP '00 Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 01
Brief paper: A swarm intelligence approach to the synthesis of two-dimensional IIR filters
Engineering Applications of Artificial Intelligence
A design method for cosine-modulated filter banks using weighted constrained-least-squares filters
Digital Signal Processing
On characterization of linear phase nonuniform filter banks
Signal Processing
A fast windowing-based technique exploiting spline functions for designing modulated filter banks
IEEE Transactions on Circuits and Systems Part I: Regular Papers
An improved and simplified design of cosine-modulated pseudo-QMF filterbanks
Digital Signal Processing
Information Sciences: an International Journal
Evolutionary Design of Digital Filters With Application to Subband Coding and Data Transmission
IEEE Transactions on Signal Processing
A simple design method for near-perfect-reconstruction nonuniformfilter banks
IEEE Transactions on Signal Processing
Design of linear-phase recombination nonuniform filter banks
IEEE Transactions on Signal Processing
A simple method for designing high-quality prototype filters forM-band pseudo QMF banks
IEEE Transactions on Signal Processing
Nonuniform Directional Filter Banks With Arbitrary Frequency Partitioning
IEEE Transactions on Image Processing
An efficient iterative method for nearly perfect reconstruction non-uniform filter bank
International Journal of Speech Technology
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In this paper, an efficient iterative algorithm is proposed for the design of multi-channel nearly perfect reconstructed non-uniform filter bank. The method employs the constrained equiripple FIR technique to design the prototype filter for filter banks with novelty of exploiting a new perfect reconstruction condition of the non-uniform filter banks instead of using complex objective functions. In the proposed algorithm, passband edge frequency (@w"p) is optimized using linear optimization technique such that the filter coefficients values at quadrature frequency are approximately equal to 0.707. Several design examples are included to illustrate the efficacy of this methodology for designing non-uniform filter bank (NUFB). It was found that the proposed methodology performs better as compared to earlier reported results in terms of reconstruction error (RE), number of iteration (NOI) and computation time (CPU time). The proposed algorithm is very simple, linear in nature, and easy to implement.