Results 361 to 370 of about 744,050 (371)

A Discrete Fractional Fourier Transform

2019
Some properties of the XFT as a discrete fractional Fourier transform and as a linear canonical transform are given in this chapter. The eigenvectors of the discrete fractional Fourier transform are obtained and the discrete canonical coherent states are studied.
openaire   +2 more sources

Fetal heart rate estimation using fractional Fourier transform and wavelet analysis

Biocybernetics and Biomedical Engineering, 2021
A. Jaba Deva Krupa, S. Dhanalakshmi, N.L. Sanjana, Naveen Manivannan, R. Kumar, Saswati Tripathy   +5 more
semanticscholar   +1 more source

Introduction of a new vortex cosine-hyperbolic-Gaussian beam and the study of its propagation properties in fractional Fourier transform optical system

Optical and quantum electronics, 2020
Z. Hricha, M. Yaalou, A. Belafhal
semanticscholar   +1 more source

Classification of heart sounds using fractional fourier transform based mel-frequency spectral coefficients and traditional classifiers

Biomedical Signal Processing and Control, 2020
Zaid Abduh, E. A. Nehary, M. Wahed, Y. Kadah   +3 more
semanticscholar   +1 more source

Fractional Fourier Transform Based Adaptive Filtering Techniques for Acoustic Emission Signal Enhancement

, 2020
K. Prajna, C. Mukhopadhyay
semanticscholar   +1 more source

Optimized sparse fractional Fourier transform: Principle and performance analysis

Signal Processing, 2020
Hongchi Zhang, T. Shan, Shengheng Liu, R. Tao   +3 more
semanticscholar   +1 more source

The fractional Fourier transform as a biomedical signal and image processing tool: A review

, 2020
Alejandro Gómez-Echavarría, J. P. Ugarte, C. Tobón   +2 more
semanticscholar   +1 more source

Secure optical encryption based on ghost imaging with fractional Fourier transform

, 2020
Shengmei Zhao, Xiaodi Yu, Le Wang, Wei Li, B. Zheng   +4 more
semanticscholar   +1 more source

Asymmetric color cryptosystem using chaotic Ushiki map and equal modulus decomposition in fractional Fourier transform domains

Optics and lasers in engineering, 2019
Hang Chen, Zhengjun Liu, Li Zhu, C. Tanougast, W. Blondel   +4 more
semanticscholar   +1 more source

A New Perspective on the Two-Dimensional Fractional Fourier Transform and Its Relationship with the Wigner Distribution

, 2019
A. Zayed
semanticscholar   +1 more source