Fundamentals and Literature Review of Discrete Fourier Transform in Digital Signal Processing

Abstract

Today’s world is digital world. While designing and analyzing the digital phenomena the most desired factor are high performance, time and cost(economy).DFT and FFT are the most efficient mathematical technique to meet these challenges .To compute DFT using FFT is genius method ,in this method FFT decomposes DFT with N sample points, into N DFT each with single point. This paper focus on DFT, FFT and its approach to Digital signal processing.