Abstract
This study describes the design of high speed FIR filter using parallel prefix adders and factorized multiplier. The fundamental component in constructing any high speed FIR filter consists of adders, multipliers and delay elements. To meet the constraint of high speed performance and low power consumption parallel prefix adders are more suitable. This study focus the design of new Parallel Prefix Adder (PPA) and new multiplier cell called factorized multiplier with minimal depth algorithm and its functional characteristics is compared with the existing architecture in terms of delay and area. The performance evaluation of the proposed PPA and multiplier are examined for the bit sizes of 8, 16, 32 and 64. The coefficient of the filter is obtained through hamming window using MATLAB program. The proposed FIR filter using new PPA and factorized multiplier has been prototyped on XC3S1600EFG320 in Spartan-3E Platform using Integrated Synthesis Environment (ISE) for 90 nm process. Nearly 14% of slice utilization and 34% of speed improvement has been obtained for FIR using new PPA and factorized multiplier.
Highlights
The FIR filters are used to remove unwanted signal component using discrete transfer function of the input with a set of filter coefficients
This study describes the design of high speed FIR filter using new parallel prefix adders and factorized multiplier to meet the constraint of high speed performance and low power consumption
The performance evaluation of the proposed Parallel Prefix Adder (PPA) and multiplier are examined for the bit sizes of 8, 16, 32 and 64
Summary
The FIR filters are used to remove unwanted signal component using discrete transfer function of the input with a set of filter coefficients. The core elements in any FIR filters are adders, multipliers and delay elements. To implement a high speed FIR filter parallel prefix adders are more suitable than ripple carry, carry save, carry select and carry look-ahead adders (Uma et al, 2012).
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More From: Research Journal of Applied Sciences, Engineering and Technology
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