Results 1 to 10 of about 17,638,954 (262)
Fault Detection in DC Microgrids Using Short-Time Fourier Transform
Energies, 2021 Fault detection in microgrids presents a strong technical challenge due to the dynamic operating conditions. Changing the power generation and load impacts the current magnitude and direction, which has an adverse effect on the microgrid protection ...
Ivan Grcić +2 more
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On the clifford short-time fourier transform and its properties [PDF]
Applied Mathematics and Computation, 2022 In this paper we investigate how the short-time Fourier transform can be extended in a Clifford setting. We prove some of the main properties of the Clifford short-time Fourier transform such as the orthogonality relation, the reconstruction property and the reproducing kernel formula.
Antonino de Martino
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Directional short-time Fourier transform of distributions
Journal of Inequalities and Applications, 2016 In this paper we consider the directional short-time Fourier transform (DSTFT) that was introduced and investigated in (Giv in J. Math. Anal. Appl. 399:100-107, 2013). We analyze the DSTFT and its transpose on test function spaces S ( R n ) $\mathcal {S}(
Katerina Hadzi-Velkova Saneva +1 more
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The Feedforward Short-Time Fourier Transform
IEEE Transactions on Circuits and Systems II: Express Briefs, 2016 This brief presents the feedforward short-time Fourier transform (STFT). This new approach is based on reusing the calculations of the STFT at consecutive time instants. This leads to significant savings in hardware components with respect to fast Fourier transform based STFTs.
Mario Garrido
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Applied Sciences, 2020 In this paper, we propose an area-efficient short-time Fourier transform (STFT) processor that can perform time–frequency analysis of non-stationary signals in real time, which is essential for voice or radar-signal processing systems.
Hohyub Jeon +3 more
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SoftwareX, 2018 The Short-Time Fourier Transform (STFT) is widely used to convert signals from the time domain into a time–frequency representation. This representation has well known limitations regarding time–frequency resolution.
Carlos Mateo, Juan Antonio Talavera
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On the polyanalytic short-time Fourier transform in the quaternionic setting
Communications on Pure and Applied Analysis, 2022 <p style='text-indent:20px;'>In this paper, we consider a quaternionic short-time Fourier transform (QSTFT) with normalized Hermite functions as windows. It turns out that such a transform is based on the recent theory of slice polyanalytic functions on quaternions.
Kamal Diki
exaly +4 more sources
Directional Short-Time Fourier Transform of Ultradistributions [PDF]
Bulletin of the Malaysian Mathematical Sciences Society, 2021 We define and analyse the $k$-directional short-time Fourier transform and its synthesis operator over Gelfand Shilov spaces $\mathcal S^α_β(\mathbb R^n)$ and $\mathcal S^α_β(\mathbb R^{k+n})$ respectively, and their duals. Also, we investigate directional regular sets and their complements - directional wave fronts, for elements of $\mathcal S^{\prime
Sanja Atanasova +2 more
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The Short-Time Fourier Transform [PDF]
Signal Processing, 2001 We have seen that ideal time-frequency analysis faces a fundamental obstacle in the form of the uncertainty principle. Nevertheless, the example of the musical score indicates that a reasonable and useful form of time-frequency analysis should still be possible and realizable.
F.J Owens, M.S Murphy
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Jurnal Teknologi Informasi dan Ilmu Komputer, 2023 Berdasarkan laporan American Heart Association, penyakit kardiovaskular menjadi penyebab kematian global tertinggi. Phonocardiogram (PCG) dan electrocardiogram (ECG) biasanya digunakan untuk mendeteksi penyakit jantung.
Muhammad Alwi Adnan Amal +2 more
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