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The main objective of this paper is to design and implement minimum multiplier, low latency structures of a comb filter. Multipliers are the most area and power consuming elements; therefore, it is desirable to realize a filter with minimum number of multipliers. In this paper, design of comb filters based on lattice wave digital filters (LWDF) structure is proposed to minimize the number of multipliers...
This paper deals with the application of lattice wave digital filter (LWDF) (3rd and 5th order) for obtaining an efficient design of a Fractional Delay Filter (FDF). The Real Coded Genetic algorithm (RCGA) and Cuckoo Search Algorithm (CSA) have been used in order to determine the optimal coefficient values of LWDF in order to meet the ideal frequency response characteristics. The simulation of FDF...
This paper proposes a novel methodology for design and multiplierless implementation of fractional order integrator (FOI) based on lattice wave digital filter using gravitational search algorithm (GSA). The FOI design problem is formulated as an optimization problem using the transfer function of lattice wave digital filter (LWDF). The realization of FOI using LWDF structure increases the accuracy...
The minimum hardware and low power dissipation are the main concern for efficient filter implementation. A method to design and implement the comb lattice wave digital filter with only one multiplier, small area and low power dissipation is proposed. Lattice wave digital filter is used for filter realization due to its excellent properties. A design level area optimization is done by converting constant...
The minimum hardware and low power dissipation have always been the main concern for the efficient filter implementation. In this paper, an efficient way of implementing the lattice wave digital filter (LWDF) structure of the quadrature mirror filter (QMF) with canonic signed digit (CSD) coefficients is proposed. Further, the proposed structure is implemented using carry save adders rather than slow...
The minimum hardware and low power dissipation have always been the main concern for the efficient filter implementation. In this paper, an effective way of implementing the lattice wave digital structure of the Hilbert transformer with canonic signed digit code (CSDC) coefficients is proposed. Further, the proposed structure is implemented using carry save adders rather than slow ripple carry adders...
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