Results 251 to 260 of about 1,921,662 (293)

A novel algorithm for digital overcurrent relay using discrete Fourier transform (DFT)

7th IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2006), 2006
An over current protective relays has played very important role in maintaining reliability of a distribution system and protecting the equipment from the damage due to system fault. The performance of a relay is greatly determined by its sensitivity and response time.
Jiang, F., Bo, Z. Q., Chen, Zhe
openaire   +2 more sources

Realization of a discrete Fourier transform (DFT) module for incorporation in FFT processors

Proceedings of the IEEE, 1977
For applications requiring high-speed and in-place treatment, it is often advantageous to realize special-purpose computers. This paper describes a discrete Fourier transform (DFT) module for incorpration in fast Fourier transform (FFT) processors. The module is highly suitable for real input applications requiring high-speed transformations.
A. Pomerleau, M. Fournier, H.L. Buijs
openaire   +1 more source

Discrete Fractional Fourier Transforms Based on Closed-Form Hermite–Gaussian-Like DFT Eigenvectors

IEEE Transactions on Signal Processing, 2017
In this paper, we construct discrete fractional Fourier transforms (DFrFT) using recently introduced closed-form Hermite–Gaussian-like (HGL) eigenvectors. With respect to such eigenvectors, we discuss the convergence of their components to samples of the corresponding continuous Hermite–Gaussian functions and propose solutions to deal with some ...
José Rodrigues de Oliveira-Neto, Juliano B. Lima   +1 more
openaire   +2 more sources

Double Discrete Cosine Transform-Oriented Multi-View Subspace Clustering

IEEE Transactions on Image Processing
Low-rank tensor representation with the tensor nuclear norm has been rising in popularity in multi-view subspace clustering (MVSC), in which the tensor nuclear norm is commonly implemented using discrete Fourier transform (DFT).
Yongyong Chen, Shuqin Wang, Yin-Ping Zhao, C. L. Philip Chen   +3 more
semanticscholar   +1 more source

Fourier Transform Analysis of Discrete Time Signals and Systems—DTFT, DFT and FFT

2021
In Chap. 4, we represented continuous time periodic signals as a sum of everlasting exponentials by Fourier series. Similarly, in Chap. 5, the discrete time periodic signals was represented by discrete time Fourier series using a parallel development of continuous time system.
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Measurement of time delay using the time shift property of the discrete Fourier transform (DFT)

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1986
The time shift property of the discrete Fourier transform (DFT) is used in the measurement of time delay. The eccentricity of a screw rod has been experimentally measured, and delays of the ultrasonic wave have been known with the precision of one percent of the temporal sampling interval.
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Frequency estimation based on symmetric discrete Fourier transform

, 2021
Rui Li, Jianping Xuan, T. Shi
semanticscholar   +1 more source

DFT-CAM: Discrete Fourier Transform Driven Class Activation Map

2023 IEEE International Conference on Image Processing (ICIP), 2023
Yang Yang Wang, Filiz Bunyak
openaire   +1 more source

The DFT: An Owner's Manual for the Discrete Fourier Transform

Journal of the American Statistical Association, 1999
Robert Strawderman, William L. Briggs, Van Emden Henson   +2 more
openaire   +1 more source

Discrete Time Fourier Transform (DTFT) and Discrete Fourier Transform (DFT)

2023
openaire   +1 more source