Discrete Fourier Transform (DFT)
Laboratory 6: Discrete Fourier Transform
... new transform called the discrete Fourier transform (DFT), which is the primary period of the ...computable Fourier transform for arbitrary finite-duration ...
9
CAS: The Discrete Fourier Transform and Cyclical Overflow
... 1. Introduction A common tool of casualty actuaries is the collective- risk model S = X 1 + . . . + X N , according to which aggregate loss S is composed of a random number N of independent, identically distributed ...
7
On Some Applications of the Fast Discrete Fourier Transform »
... Motivated by the excellent work of Bill Davis and Jerry Uhlʼs Differential Equations & Mathematica [1], we present in detail several little-known applications of the fast discrete Fourier ...
21
Discrete Fourier Transform Design Using Floating Point Numbers
... called Discrete Fourier Transform and the inverse from frequency domain to time domain is called as Inverse Discrete Fourier ...
6
Image Encryption Using Chaotic Cat Mapping in the Discrete Fourier Transform
... the Discrete Fourier Transform Mohammed Alzain Department of Information Technology, College of Computers and Information Technology, Taif University Abstract—The paper presents an secure image using ...
9
A Discrete Fourier Transform Approach Searching for Compatible Sequences and Optimal Designs
... perimental designs can be found in [1, 8] and the references therein. A method that uses the Discrete Fourier Transform (DFT) was recently developed in the literature (see [3]). In this paper, we ...
6
Efficient Detection of Multi-Narrowband Using the Warped Discrete Fourier Transform
... This paper presents a multi-narrowband signal processing paradigm that is based on the use of the warped discrete Fourier transform (WDFT). The WDFT evaluates a discrete-time signal in the ...
8
Mining recurrent concepts in data streams using the discrete Fourier transform
... the Discrete Fourier Transform (DFT) to Decision Tree classifiers to ob- tain highly compressed versions of the trees at concept drift points in the stream and store such trees in a repository for ...
12
The Discrete Fourier Transform
... The Discrete Fourier Transform Lab Objective: The analysis of periodic functions has many applications in pure and applied mathematics, especially in settings dealing with sound ...The Fourier ...
9
Discrete Convolution and the Discrete Fourier Transform
... the Discrete Fourier Transform Discrete Convolution First of all we need to introduce what we might call the “wraparound” ...the discrete Fourier context we represent all N ...
11
Relation between Type-II Discrete Sine Transform and Discrete Fourier Transform
... KEYWORDS: Discrete Sine Transform, Discrete Cosine Transform, Discrete Fourier ...I.INTRODUCTION Discrete transforms play a significant role in digital signal ...
5
The discrete Fourier transform of (r, s) even functions
... Key words : Periodic functions; ( r, s ) −even functions; multiplicative functions; discrete Fourier transform; generalized Ramanujan sum; linear congruences; H¨older’s identity.. I NTRO[r] ...
16
Optimal Control of Singular System via Discrete Fourier Transform
... using discrete fourier transform is ...introducing discrete fourier transform in the beginning we develop an operational matrix for solving singular state ...
6
Discrete fourier transform based TOA estimation in UWB systems
... RESEARCH Open Access Discrete fourier transform based TOA estimation in UWB systems Achraf Mallat1*, J?r?me Louveaux1, Luc Vandendorpe1, Mario Di Dio2 and Marco Luise2 Abstract In this paper, we propo[.] ...
9
Robust hashing for image authentication using quaternion discrete Fourier transform and log-polar transform
... quaternion discrete Fourier transform (QDFT) with the log-polar ...log-polar transform; and (ii) the extraction from this image of low frequency QDFT coefficients’ ...
30
Implementation of Generalized Discrete Fourier Transform for CDMA on Real Time System
... Table 1: Comparison Performance of Gold, Walsh and GDFT 7. CONCLUSION In this paper we have implemented spreading code GDFT with non linear phase on Real Time System. GDFT code can be used in CDMA which is having better ...
5
Numerical Approximation of Real Finite Nonnegative Function by the Modulus of Discrete Fourier Transform
... Received March 15, 2010; revised April 21, 2010; accepted April 28, 2010 Abstract The numerical algorithms for finding the lines of branching and branching-off solutions of nonlinear prob- lem on mean-square ...
11
Coefficient-of-determination Discrete Fourier Transform
... perform Discrete Fourier Transforms (DFT) to convert temporal data into spectral ...the Fourier Transforms by studying the Coefficient of Determination of a series of artificial sinusoidal functions ...
13
Eigenvectors of the Discrete Fourier Transform Based on the Bilinear Transform
... the discrete fractional Fourier ...bilinear transform. The bilinear transform maps the analog space to the discrete sample ...the discrete z-domain, it is appropriate to use it ...
7
Discrete Fourier Transform: Approach To Signal Processing
... VI. CONCLUSION From simulation result and their FFT analysis in figure 9 and 10, it is cleared that for line to ground fault at one of the motor phase terminals phase A having single spike with small another harmonics as ...
8