IMPLEMENTATION OF INTERFERENCE CANCELLATION BY ADAPTIVE FILTERS

This paper investigates on the development and implementation of adaptive noise cancellation (ANC) algorithm meant for mitigating the high machinery noise in factory plants ,which makes the speech signal unintelligible.This opens up the need for an adaptive filter that cancels this interference of noise.An adaptive filter is computational device that attempts to model the relationship between two signals in real time in an iterative manner.An adaptive filter self adjusts the filter coefficients according to an adaptive algoritm.A comparative study of Gradient based adaptive Infinite Impulse Response(IIR) algorithm and its modified version is performed using MATLAB simulator interms of converging speed.From the simulation result the best IIR algorithm is used for implementation in Performance Optimized with Enhanced RISC PC ( Power PC) 7448.