Results 21 to 30 of about 150,152 (290)
Radar Emitter Recognition Based on the Energy Cumulant of Short Time Fourier Transform and Reinforced Deep Belief Network [PDF]
Sensors, 2018 To cope with the complex electromagnetic environment and varied signal styles, a novel method based on the energy cumulant of short time Fourier transform and reinforced deep belief network is proposed to gain a higher correct recognition rate for radar ...
Xuebao Wang +5 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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IJAIN (International Journal of Advances in Intelligent Informatics), 2017 Time-Frequency Analysis on Gong Timor Music has an important role in the application of signal-processing music such as tone tracking and music transcription or music signal notation.
Yovinia Carmeneja Hoar Siki +1 more
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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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Research on impulse interference suppression method based on short time fractional Fourier transform
Journal of Hebei University of Science and Technology, 2021 In order to solve the problem that the impulse interference near the service frequency band of aviation radio navigation affects the receiver, and further improve the anti-jamming ability of GNSS system, a impulse interference suppression method based on
Xiaojun WANG, Linbo XUE, Yanpeng WANG
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PLoS ONE, 2020 The aim of time-varying heart rate variability spectral analysis is to detect and quantify changes in the heart rate variability spectrum components during nonstationary events. Of the methods available, the nonparametric short-time Fourier Transform and
Emily M Wong +2 more
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Planar Sampling Sets for the Short-Time Fourier Transform [PDF]
Constructive Approximation, 2020 This paper considers the problem of restricting the short-time Fourier transform to domains of nonzero measure in the plane and studies sampling bounds of such systems. In particular, we give a quantitative estimate for the lower sampling bound in the case of Hermite windows and derive a sufficient condition for a large class of windows in terms of a ...
Jaming, Philippe, Speckbacher, Michael
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Characterization of Wave Fronts of Ultradistributions Using Directional Short-Time Fourier Transform
Axioms, 2021 In this paper we give a characterization of Sobolev k-directional wave front of order p∈[1,∞) of tempered ultradistributions via the directional short-time Fourier transform.
Sanja Atanasova +2 more
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