International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 170 - Number 8 |
Year of Publication: 2017 |
Authors: Anushree Ashokan, Himanshu Nautiyal, Pallav Parmar |
10.5120/ijca2017914929 |
Anushree Ashokan, Himanshu Nautiyal, Pallav Parmar . A Comparative Analysis of FIR Filters using Distributed Arithmetic Formulation. International Journal of Computer Applications. 170, 8 ( Jul 2017), 25-28. DOI=10.5120/ijca2017914929
In this paper we are comparing the FIR filters by distributed arithmetic (DALUT) design using sharing lookup table and reconfigurable implementation of distributed arithmetic (RIDA) method. DA-based design with look-up table (LUT)-sharing technique for the computation of filter outputs and weight-increment terms of block least mean square BLMS algorithm. Besides, it offers significant saving of adders which constitute a major component of DA-based structures. While in the reconfigurable implementation of distributed arithmetic (DA) for post-processing applications is described. The input of DA is received in digital form and its analog coefficients are set by using the floating-gate voltage references. This is a major advantage of the DALUT structure for reducing its area delay product (ADP); particularly, when a large order adaptive digital Filter (ADF) is implemented for higher block-sizes.