Design of Multiplierless M-channel Cosine Modulated Filterbank using Hybrid CSE Technique
Ila Sharma, Anil Kumar, L. K. Balyan · 2018
In this paper, an optimal design of multiplierless M-channel cosine modulated filterbank (FB) is proposed by exploiting the benefits of shifted Chebyshev polynomials and newly developed hybrid common subexpression elimination (CSE). An objective function, constituted as integral mean square error (MSE) of the ideal and a generated filter responses is optimized through hybrid swarm optimization algorithm (HSOA). The novel feature of proposed methodology is its unique selection of the parameters Kr and Ks that corresponds to the optimally quantized and CSE operated coefficients.