Results 11 to 20 of about 29,490 (266)

Efficiency Comparison of DFT/IDFT Algorithms by Evaluating Diverse Hardware Implementations, Parallelization Prospects and Possible Improvements

Proceedings of the International Conference on Applied Innovations in IT, 2014
In this paper we investigate various algorithms for performing Fast Fourier Transformation (FFT)/Inverse Fast Fourier Transformation (IFFT), and proper techniques for maximizing the FFT/IFFT execution speed, such as pipelining or parallel processing, and
Danijela Efnusheva, Natasha Tagasovska, Aristotel Tentov, Marija Kalendar   +3 more
doaj   +1 more source

Algoritme Fast Fourier Transform (FFT) dan Implementasinya pada Parallel Virtual Machine (PVM)

Teknologi dan Kejuruan, 2009
Algoritme Fast Fourier Transform (FFT) merupakan algoritme yang efisien untuk menghitung Discrete Fourier Transform (DFT), tetapi untuk data yang besar masih diperlukan waktu eksekusi yang cukup besar.
Wahyu Sakti G.I.
doaj   +1 more source

mpi4py-fft: Parallel Fast Fourier Transforms with MPI for Python [PDF]

Journal of Open Source Software, 2019
The fast Fourier transform (FFT) is an algorithm that efficiently computes the discrete Fourier transform. Since the dawn of our digital society, the FFT has permeated to the heart of everyday life applications involving audio, image, and video processing.
Mikael Mortensen, Lisandro Dalcín, David E. Keyes   +2 more
openaire   +3 more sources

Application of parallel version two-dimensional fast Fourier transform algorithm, analog of the Cooley-Tukey algorithm, for digital image processing of satellite data

E3S Web of Conferences, 2019
In modern systems of remote sensing two-dimensional fast Fourier transform (FFT) has been widely used for digital processing of satellite images and subsequent image filtering.
Noskov Mikhail, Tutatchikov Valeriy, Lapchik Mikhail, Ragulina Marina, Yamskikh Tatiana   +4 more
doaj   +1 more source

A RADIX-4/8/SPLIT RADIX FFT WITH REDUCED ARITHMETIC COMPLEXITY ALGORITHM [PDF]

ICTACT Journal on Communication Technology, 2012
In this paper we present alternate form of Radix-4/8 and split radix FFT’s based on DIF (decimation in frequency) version and discuss their implementation issues that further reduces the arithmetic complexity of power-of-two discrete Fourier Transform ...
Shaik Qadeer, Mohammed Zafar Ali Khan, Syed Abdul Sattar   +2 more
doaj  

Comparative Study of AC Signal Analysis Methods for Impedance Spectroscopy Implementation in Embedded Systems

Applied Sciences, 2022
For embedded impedance spectroscopy, a suitable method for analyzing AC signals needs to be carefully chosen to overcome limited processing capability and memory availability. This paper compares various methods, including the fast Fourier transform (FFT)
Ahmed Yahia Kallel, Zheng Hu, Olfa Kanoun   +2 more
doaj   +1 more source

Automatic Petrol and Diesel Engine Sound Identification Based on Machine Learning Approaches [PDF]

E3S Web of Conferences, 2019
Petrol and diesel engine have a significantly different way to convert chemical energy into mechanical energy. In this work, the intelligent system approach is used to automatically identify the type of engine based on the sound of the engine.
Frederick Halim, Winda Astuti, Iwan Solihin Mahmud   +2 more
doaj   +1 more source

Two- and Three-Dimensional Fast Intrawall Imaging with Microwave Tomographic Algorithm

International Journal of Antennas and Propagation, 2018
A fast and efficient microwave tomographic algorithm is proposed for 2-D and 3-D real-time intrawall imaging. The exploding reflection model is utilized to simplify the imaging formulation, and the half-space Green’s function is expanded in the spectral ...
Wenji Zhang, Ahmad Hoorfar, Christopher Thajudeen   +2 more
doaj   +1 more source

DESIGN OF FFT ARCHITECTURE USING KOGGE STONE ADDER

International Journal of Advances in Signal and Image Sciences, 2018
An efficient Fast Fourier Transform (FFT) algorithm is used in the Orthogonal Frequency Division Multiplexing (OFDM) applications in order to compute the discrete Fourier transform.
Rambabu Nusullapalli, Vaishnavi N
doaj   +1 more source

A new Flap-top window FFT algorithm for energy metering based on quasi-synchronous sampling

Diance yu yibiao
In order to further improve the accuracy of energy metering algorithms for standard electricity meters, this paper provides a comprehensive review of the principles and performance of quasi-synchronous sampling algorithms and fast Fourier transform (FFT)
ZHANG Zhiying, DU Zhengzhou, LI Longlong, LIU Jian, ZHAO Wei, LI Shisong   +5 more
doaj   +1 more source