Results 1 to 10 of about 113,812 (347)
A Window Width Optimized S-Transform [PDF]
EURASIP Journal on Advances in Signal Processing, 2008 Energy concentration of the S-transform in the time-frequency domain has been addressed in this paper by optimizing the width of the window function used.
Jin Jiang +2 more
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Short-Time Fourier Transform with the Window Size Fixed in the Frequency Domain (STFT-FD): Implementation [PDF]
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 Performance of Sparse Fast Fourier Transform Algorithms Using the Flat Window Filter [PDF]
IEEE Access, 2020 The problem of computing the Sparse Fast Fourier Transform(sFFT) of a K-sparse signal of size N has received significant attention for a long time.
Bin Li, Zhikang Jiang, Jie Chen
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Windowed linear canonical transform: its relation to windowed Fourier transform and uncertainty principles [PDF]
Journal of Inequalities and Applications, 2022 AbstractThe windowed linear canonical transform is a natural extension of the classical windowed Fourier transform using the linear canonical transform. In the current work, we first remind the reader about the relation between the windowed linear canonical transform and windowed Fourier transform. It is shown that useful relation enables us to provide
Mawardi Bahri
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On the inverse windowed Fourier transform [PDF]
IEEE Transactions on Information Theory, 1999 The inversion problem concerning the windowed Fourier transform is considered. It is shown that, out of the infinite solutions that the problem admits, the windowed Fourier transform is the "optimal" solution according to a maximum-entropy selection criterion.
Rebollo Neira, Laura +1 more
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Transformation optics with windows [PDF]
SPIE Proceedings, 2014 Identity certification in the cyberworld has always been troublesome if critical information and financial transaction must be processed. Biometric identification is the most effective measure to circumvent the identity issues in mobile devices. Due to bulky and pricy optical design, conventional optical fingerprint readers have been discarded for ...
Oxburgh, Stephen +4 more
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Mwformer: Mesh Understanding with Window-Based Transformer [PDF]
Computers & Graphics, 2023 Polygonal mesh has been proven to be a powerful representation of 3D shapes, given its efficiency in expressing shape surface while maintaining geometric and topological information. Increasing efforts have been made to design elaborate deep convolutional neural networks for meshes.
Hao-Yang Peng +4 more
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Lorentz-transformation and Galileo-transformation windows [PDF]
SPIE Proceedings, 2014 We define Lorentz-transformation windows as windows that change the direction of transmitted light rays like a Lorentz transformation. Similarly, Galileo-transformation windows change the direction of transmitted light rays like a Galileo transformation.
Oxburgh, Stephen +3 more
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An Improved Location Method of 10 kV Cable Joints Based on Nuttall Self-Convolution Window
Zhongguo dianli, 2021 In order to solve the problem of spectrum leakage and fence effect when using discrete Fourier transform (DFT) to analyze the input impedance spectrum of header point of cable, this paper presents an improved method of the joints location for the 10kV ...
Xingquan XU +6 more
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Window Functions With Minimum-Sidelobe Derivatives for Computing Instantaneous Frequency
IEEE Access, 2022 In the field of nonstationary signal analysis and processing, the short-time Fourier transform (STFT) is frequently used to convert signals into the time-frequency domain.
Tsubasa Kusano +2 more
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