Results 1 to 10 of about 891,940 (302)

Large-Scale Discrete Fourier Transform on TPUs [PDF]

open access: yesIEEE Access, 2021
In this work, we present two parallel algorithms for the large-scale discrete Fourier transform (DFT) on Tensor Processing Unit (TPU) clusters. The two parallel algorithms are associated with two DFT formulations: one formulation, denoted as KDFT, is ...
Tianjian Lu   +4 more
doaj   +2 more sources

Discrete Quadratic-Phase Fourier Transform: Theory and Convolution Structures

open access: yesEntropy, 2022
The discrete Fourier transform is considered as one of the most powerful tools in digital signal processing, which enable us to find the spectrum of finite-duration signals.
Hari M. Srivastava   +3 more
doaj   +1 more source

Secure Distributed Matrix Computation With Discrete Fourier Transform [PDF]

open access: yesIEEE Transactions on Information Theory, 2020
We consider the problem of secure distributed matrix computation (SDMC), where a user queries a function of data matrices generated at distributed source nodes.
N. Mital, Cong Ling, Deniz Gündüz
semanticscholar   +1 more source

Concept of multistage discrete fourier transform without performing multiplications

open access: yesJournal of Physics: Conference Series, 2021
The issues related to the development and research of digital methods and algorithms for the discrete Fourier transform, which do not require algorithmic multiplication operations, are considered.
A. Yu. Burova
semanticscholar   +1 more source

Discrete Fourier transform and permutations [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2019
It is well known that the magnitudes of the coefficients of the discrete Fourier transform (DFT) are invariant under certain operations on the input data. In this paper, the effects of rearranging the elements of an input data on its DFT are studied.
S. Hui, S.H. Żak
doaj   +1 more source

Digital signal processing in telecommunications based on parametric discrete Fourier transform [PDF]

open access: yesITM Web of Conferences, 2019
A generalization of the discrete Fourier transform in the form of a parametric discrete Fourier transform is proposed. The analytical and stochastic properties of the introduced discrete transformation are investigated.
Ponomareva Olga   +2 more
doaj   +1 more source

Sliding signal processing in telecommunication networks based on two-dimensional discrete Fourier transform [PDF]

open access: yesITM Web of Conferences, 2019
A method of vertical sliding processing of two-dimensional discrete signals in the spatial frequency domain is proposed — a method of fast vertically sliding two-dimensional discrete Fourier transform.
Ponomarev Vladimir   +3 more
doaj   +1 more source

Modified discrete Fourier transform algorithm for protection of shunt compensated distribution line

open access: yesElectrical engineering & Electromechanics, 2023
Introduction. The response time of the relay plays vital role when fault occurs on the line. Various algorithms are adopted to increase the sampling rate of the relay which, in turn, improves the response time. Methods.
A. Jani, V. H. Makwana
doaj   +1 more source

A Developed Discrete Fourier Transform based Cryptosystem [PDF]

open access: yesKirkuk Journal of Science, 2016
This paper provides a developed cryptosystem for data encryption based on using the Discrete Fourier Transform (DFT). The encryption side using the DFT method for performing the main security development that is considered as the main encryption process ...
Ashty M. Aaref
doaj   +1 more source

Design and Simulation of a Low-Power and High-Speed Fast Fourier Transform for Medical Image Compression

open access: yesEngineering Proceedings, 2023
For front-end wireless applications in small battery-powered devices, discrete Fourier transform (DFT) is a critical processing method for discrete time signals. Advanced radix structures are created to reduce the impact of transistor malfunction.
Ernest Ravindran Ramaswami Sachidanandan   +2 more
doaj   +1 more source

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