Results 221 to 230 of about 8,473 (273)

Power quality disturbance identification using hybrid deep learning in renewable energy systems. [PDF]

Sci Rep
Peruman PM, Ayyar K.
europepmc   +1 more source

Discovery of α-PtO2 nanoparticles in deep-sea ferromanganese deposits: a hidden platinum sink

Liao J, Li Y, Léger J, Koschinsky A, Dejoie C, Gaillot A, Snigireva I, Giacomelli A, Steinmann SN, Mathon O, Manceau A.   +10 more
europepmc   +1 more source

The discrete fractional Fourier transform based on the DFT matrix

Signal Processing, 2011
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Ahmet Serbes, Lutfiye Durak-Ata
exaly   +5 more sources

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Time-frequency scaling property of Discrete Fourier Transform (DFT)

2010 IEEE International Conference on Acoustics, Speech and Signal Processing, 2010
This paper presents the analogue of the time or frequency scaling theorem of continuous time/frequency Fourier Transform (FT) to the realm of Discrete Fourier Transform (DFT). The scaling property applies to scaling by integers which are relatively prime to the length of the DFT. The time reversal property of DFT is identified as a special case of this
Sumit A. Talwalkar, S. Lawrence Marple Jr.   +1 more
exaly   +2 more sources

Eigenvectors of the DFT and discrete fractional fourier transform based on the bilinear transform

2010 IEEE 18th Signal Processing and Communications Applications Conference, 2010
Orthonormal eigenvectors of the DFT matrix, which is closer to the samples of Hermite-Gaussian functions, are crucial to define the discrete fractional Fourier transform. In this work we determine the eigenvectors of the DFT matrix inspired by the bilinear transform.
Ahmet Serbes, Lutfiye Durak-Ata
exaly   +2 more sources

Sizing of Energy Storage and Diesel Generators in an Isolated Microgrid Using Discrete Fourier Transform (DFT)

IEEE Transactions on Sustainable Energy, 2014
This paper proposes a method for coordinated sizing of energy storage (ES) and diesel generators in an isolated microgrid based on discrete Fourier transform (DFT). ES and diesel generators have different response characteristics and can complementarily compensate the generation-demand imbalance at different time scales.
Jun Xiao, Linquan Bai, Fangxing Li
exaly   +2 more sources

The discrete fractional Fourier transform [PDF]

IEEE Transactions on Signal Processing, 2000
We propose and consolidate a definition of the discrete fractional Fourier transform that generalizes the discrete Fourier transform (DFT) in the same sense that the continuous fractional Fourier transform generalizes the continuous ordinary Fourier ...
Cagatay Candan, H M Ozaktas
exaly   +3 more sources

Steerable Discrete Fourier Transform [PDF]

IEEE Signal Processing Letters, 2017
Directional transforms have recently raised a lot of interest thanks to their numerous applications in signal compression and analysis. In this letter, we introduce a generalization of the discrete Fourier transform (DFT), called steerable DFT (SDFT ...
Giulia Fracastoro, Enrico Magli
exaly   +2 more sources

Eigenvectors and functions of the discrete Fourier transform

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1982
-A method is presented for computing an orthonormal set of eigenvectors for the discrete Fourier transform (DFT). The technique is based on a detailed analysis of the eigenstructure of a special matrix which commutes with the DFT.
B Dickinson, K Steiglitz
exaly   +1 more source