Efficient Fixed-Point DLMS Adaptive Filter Implementation on FPGA
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 6
Abstract
In this paper, we present an efficient architecture for the implementation of a delayed least mean square adaptive filter. For achieving lower adaptation-delay and area-delay-power efficient implementation, we use a novel partial product generator and propose a strategy for optimized balanced pipelining across the time-consuming combinational blocks of the structure. From synthesis results, we find that the proposed design offers nearly 17% less area-delay product (ADP) and nearly 14% less energydelay product (EDP) than the best of the existing systolic structures, on average, for filter lengths N = 8, 16, and 32. We propose an efficient fixed-point implementation scheme of the proposed architecture, and derive the expression for steady-state error. We show that the steady-state mean squared error obtained from the analytical result matches with the simulation result. Moreover, we have proposed a bit-level pruning of the proposed architecture, which provides nearly 20% saving in ADP and 9% saving in EDP over the proposed structure before pruning without noticeable degradation of steady-state-error performance.
Authors and Affiliations
J. Shobha, Y. Murali
Keywords
Related Articles
- EP ID EP20938
- DOI -
- Views 247
- Downloads 4
A Model of Present Influencing Factors to Indian Human Resource Management
Human resource management is the concept of preplanned, centralized decision making process and it is different form older concepts like staffing and placement etc. People or HRM is the central power system of any organ...
VLSI Implementation of Separating Fetal ECG Using Adaptive Line Enhancer
fetal electrocardiogram (fecg) signal recording is the popular technique for heart signal monitoring of fetus. It is also used to monitor health condition of fetus in pregnancy period continuously. Fetal electrocardiogr...
A Comparison the Industrialization and Traditional Systems Using AHP
The extensive and growing need for the construction and housing has raised more than ever the necessity for using building systems and new materials in order to increase the speed of construction, lightweight constructi...
A Study on Workers Participation in Management
most important outcome of great industrial revolution is the change in the approach of management towards workers. The workers no more considered as machines their feeling ambition and emotions have been duly recognized...
Efficient Fir Filter Implementation Based On Minimum Logic Depth Tree
Multiple constant multiplication (MCM) scheme is widely used for implementing direct-form FIR filters. While the research focus of MCM has been more effective on common sub expression elimination, the optimization of ad...