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In two recent contributions, minimization of number of adders in realization of digital finite impulse response (FIR) filter has been discussed. The proposed method extends the concept of these techniques to further reduce the requirement of adders in FIR filter for different applications. This paper is based on merging of concepts involved in vertical and horizontal common sub-expression elimination...
In this paper, a meta-heuristic algorithm known as artificial bee colony (ABC) algorithm is employed for the design of digital infinite impulse response (IIR) filter based on nonlinear minimization of mean square error (MSE) between the ideal and desired responses of the filter. In this method, stability of IIR filter during design is assured by using lattice structure as it makes easy to maintain...
A simple efficient iterative technique for the design of non-uniform filter banks (NUFB) proposed by Soni et al is examined and improved by designing the prototype filters using constrained equiripple finite impulse response (FIR) technique. In this method, instead of optimizing the cut-off frequency, the passband edge frequency (ωP) is varied iteratively in order to adjust the filter coefficients...
This paper presents a new algorithm for the design of a two band alias-free linear phase quadrature mirror filter (QMF) bank. The proposed algorithm is based on the optimum value of passband edge frequency (??p) that is found by approximately satisfying the magnitude response condition of the prototype filter at frequency (??=0.5??). In this algorithm, passband edge frequency is optimized. Performances...
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