Results 41 to 50 of about 138,884 (189)

Classification of Women's Voices Using Fast Fourier Transform (FFT) Method

open access: yesJELIKU (Jurnal Elektronik Ilmu Komputer Udayana), 2021
Everyone has a different kind of voice. Based on gender, voice type is divided into six parts, namely soprano, mezzo soprano, and alto for women; and tenor, baritone, and bass in men. Each type of sound has a different range and with different frequencies. This study classified the type of voice in women using the Fast Fourier Transform (FFT) method by
I Made Widiartha, Made Sri Ayu Apsari
openaire   +1 more source

Optimizing Fast Fourier Transform (FFT) Image Compression using Intelligent Water Drop (IWD) Algorithm.

open access: yesInternational Journal of Interactive Multimedia and Artificial Intelligence, 2022
Digital image compression is the technique in digital image processing where special attention is provided in decreasing the number of bits required to represent a digital image. A wide range of techniques have been developed over the years, and novel approaches continue to emerge.
Kaur, Surinder   +7 more
openaire   +4 more sources

Fast Fourier Optimization: Sparsity Matters

open access: yes, 2012
Many interesting and fundamentally practical optimization problems, ranging from optics, to signal processing, to radar and acoustics, involve constraints on the Fourier transform of a function. It is well-known that the {\em fast Fourier transform} (fft)
C. Papadimitriou   +19 more
core   +4 more sources

Mendisain GUI untuk Menampilkan Nilai FFT dan IFFT Menggunakan LabVIEW [PDF]

open access: yes, 2019
Methods FFT (Fast Fourier Transform) is a method for solving discrete signals which method IFFT (Inverse Fast Fourier Transform) is the reciprocal of the FFT method. Basically FFT only used for transformation and must not be separated from the method DFT
Alfina, R. (Riny)   +3 more
core  

Matrix-Vector Based Fast Fourier Transformations on SDR Architectures [PDF]

open access: yesAdvances in Radio Science, 2008
Today Discrete Fourier Transforms (DFTs) are applied in various radio standards based on OFDM (Orthogonal Frequency Division Multiplex). It is important to gain a fast computational speed for the DFT, which is usually achieved by using specialized Fast ...
Y. He   +3 more
doaj  

High-Selectivity Filter Banks for Spectral Analysis of Music Signals

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
This paper approaches, under a unified framework, several algorithms for the spectral analysis of musical signals. Such algorithms include the fast Fourier transform (FFT), the fast filter bank (FFB), the constant-Q transform (CQT), and the bounded-Q ...
Luiz W. P. Biscainho   +3 more
doaj   +1 more source

Fast Fourier Transform Simulation Techniques for Coulomb Gases

open access: yes, 2005
An improved approach to updating the electric field in simulations of Coulomb gases using the local lattice technique introduced by Maggs and Rossetto, is described and tested.
A. Duncan   +22 more
core   +1 more source

Improved Method to Obtain the Online Impulse Frequency Response Signature of a Power Transformer by Multi Scale Complex CWT

open access: yesIEEE Access, 2018
Online impulse frequency response analysis (IFRA) has proven to be a promising method to detect and diagnose the transformer winding mechanical faults when the transformer is in service.
Zhongyong Zhao   +6 more
doaj   +1 more source

Ground-Based Radar Detection for High-Speed Maneuvering Target via Fast Discrete Chirp-Fourier Transform

open access: yesIEEE Access, 2019
Detection of high-speed maneuvering targets has attracted a great deal of attention recently. There are two main problems to be solved: improving detection ability under the condition of complicated range migration and Doppler frequency migration effects,
Xiang Huang   +3 more
doaj   +1 more source

Fitting Green’s Function FFT Acceleration Applied to Anisotropic Dielectric Scattering Problems

open access: yesInternational Journal of Antennas and Propagation, 2015
A volume integral equation based fast algorithm using the Fast Fourier Transform of fitting Green’s function (FG-FFT) is proposed in this paper for analysis of electromagnetic scattering from 3D anisotropic dielectric objects.
Shu-Wen Chen, Feng Lu, Yao Ma
doaj   +1 more source

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