Review on Analysis of Low Pass Finite Impulse Response Filter Using Window functions

Abstract

Finite impulse response (FIR) filter plays a pivotal role in digital signal processing, multirate signal processing and speech analysis in the communication field. Implementation of the FIR filter employing MATLAB simulation tool can ease the computational complexity and enhance the filter performance to a greater extent. This review paper is based on the analysis of low pass FIR (Finite Impulse Response) filter using different windowing techniques. Rectangular window, Hamming window and Kaiser windows are basically considered for our simulation work . MATLAB programming tools are used to characterize the magnitude and phase response of low pass FIR filter and then analyze the input and output signal in frequency domain as well as time domain for the three window functions under consideration.