16 jan 2019 · Fourier transform provides a continuous complex frequency of a function It is useful in the study of frequency response of a filter, solution PDE, Discrete Fourier transform and FFT in the signals analysis
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Chapter TRANSIENT ANALYSIS USING THE FOURIER
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Vol. 4, No. 4, 2018, pp. 72-80
http://www.aiscience.org/journal/ajcsspISSN: 2381-7194 (Print); ISSN: 2381-7208 (Online)
* Corresponding authorE-mail address:
Applications of Fourier Series in Electric Circuit and Digital Multimedia Visualization SignalProcess of Communication System
Ahammodullah Hasan1, *, Mohammad Al-Amin Meia2,
Mohammad Owaziuddin Mostofa
31Department of Mathematics, Faculty of Applied Science and Technology, Islamic University, Kushtia, Bangladesh
2Department of Mathematics, Government Adamjeenagar Merchant Worker (M. W) College, Narayanganj, Bangladesh
3Department of Civil Engineering, Southern University Bangladesh, Chattogram, Bangladesh
Abstract
The Fourier series, the founding principle behind the field of Fourier analysis, is an infinite expansion of function in terms
sine's and cosines. Fourier transform provides a continuous complex frequency of a function. It is useful in the study of
frequency response of a filter, solution PDE, Discrete Fourier transform and FFT in the signals analysis. The advent of Fourier
transformation method has greatly extended our ability to implement Fourier methods on digital multimedia visualization
system. It covers the mathematical foundations of Digital signal processing (DSP), classical sound, synthesis algorithms and
multi-time frequency domain analysis associated musical sound. In this paper, we are analysis of square wave in terms of
Fourier component, may occur in electric circuits designed to handle sharply rising pulses and how to convert analog to digital
system by using Fourier transform and its applications in electronics and digital multimedia visualization signal process of
communication system.Keywords
Fourier Transform (FT), Fourier Sine and Cosine Transform, Inverse Fourier Transform, Inverse Fast Fourier Transform,
Electric Circuit, Frequency, Multimedia Visualization, Digital Signal Process Received: September 13, 2018 / Accepted: November 29, 2018 / Published online: January 16, 2019@ 2018 The Authors. Published by American Institute of Science. This Open Access article is under the CC BY license.
1. Introduction
The Fourier transformation is standard system analysis tool for viewing the spectral content of signal or sequence. The Fourier transform of sequence, commonly referred to as the discrete time Fourier transform or DTFT is not suitable for real-time implementation. The DTFT takes a sequence as input, but produces a continuous function of frequency as output. A close relative to the DTFT is discrete Fourier transform or DFT [1]. The DFT takes a finite length sequence as input and produces a finite length sequence as output.When the DFT is implemented as an efficient algorithm it is called the Fast Fourier transformation (FFT). J. W. Cooley
and J. W. Tukey are given credit for bringing the FFT to the world in their paper "An algorithm for the machine calculation of complex Fourier Series", Mathematics Computation, Vol. 19, 1965, pp. 297-301. In retrospect, others had discovered the technique many years before. For instance, the great German mathematician Karl Friedrich Gauss (1777-1855) had used the method more than a century earlier. This early work was largely forgotten because it lacked tool to make it practical: the digital computer [2-10]. Cooley and Tukey are honoured because they discovered the FFT at the right time. Mathematics is everywhere in every