Results 31 to 40 of about 113,812 (347)
Jurnal Nasional Teknik Elektro, 2014 Detection of low signal and determination target locations is the basis and important in the system radar. Performance of radar can enhanced with enhancement signal-to-noise ratio in the receiver.
Raisah Hayati, Rahmadi Kurnia
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Uncertainty principles for the windowed Opdam–Cherednik transform
Mathematical Methods in the Applied Sciences, 2023 In this paper, we study a few versions of the uncertainty principle for the windowed Opdam–Cherednik transform. In particular, we establish the uncertainty principle for orthonormal sequences, Donoho–Stark's uncertainty principle, Benedicks‐type uncertainty principle, Heisenberg‐type uncertainty principle, and local uncertainty inequality for this ...
Shyam Swarup Mondal, Anirudha Poria
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Swin Transformer: Hierarchical Vision Transformer using Shifted Windows [PDF]
2021 IEEE/CVF International Conference on Computer Vision (ICCV), 2021 This paper presents a new vision Transformer, called Swin Transformer, that capably serves as a general-purpose backbone for computer vision. Challenges in adapting Transformer from language to vision arise from differences between the two domains, such as large variations in the scale of visual entities and the high resolution of pixels in images ...
Ze Liu +7 more
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The Sliding Window Discrete Fourier Transform [PDF]
, 2019 The discrete Fourier transform (DFT) is a widely used tool across science and engineering. Nevertheless, the DFT assumes that the frequency characteristics of a signal remain constant over time, and is unable to detect local changes.
Lee Richardson (4940338)
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Harmonic analysis based on time domain mutual-multiplication window
Journal of Modern Power Systems and Clean Energy, 2016 The signal spectral leakage and fence effect are prone to take place during the power harmonic analysis by fast fourier transform (FFT) under asynchronous sampling. The inhibiting ability of classical window functions is restricted by side-lobe behaviors.
Tianyuan Tan +5 more
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Power System Dynamic Frequency Measurement Based on Novel Interpolated STFT Algorithm
Advances in Electrical and Electronic Engineering, 2017 As the product of time and frequency resolution of the Short-Time Fourier Transform (STFT) constant, the dynamic frequency measurement accuracy provided by the STFT is reduced under asynchronous sampling.
Junhao Zhang +4 more
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Classification of Power Quality Disturbance Based on S-Transform and Convolution Neural Network
Frontiers in Energy Research, 2021 The accurate classification of power quality disturbance (PQD) signals is of great significance for the establishment of a real-time monitoring system of modern power grids, ensuring the safe and stable operation of the power system and ensuring the ...
Jinsong Li +3 more
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FEBS Letters, EarlyView.Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil +4 more
wiley +1 more source
Support Vector Regression Based S-transform for Prediction of Single and Multiple Power Quality Disturbances [PDF]
, 2009 This paper presents a novel approach using Support Vector Regression (SVR) based S-transform to predict the classes of single and multiple power quality disturbances in a three-phase industrial power system.
Mohamed , Azah +3 more
core
On the discrete Gabor transform and the discrete Zak transform [PDF]
, 1996 Gabor's expansion of a discrete-time signal into a set of shifted and modulated versions of an elementary signal (or synthesis window) and the inverse operation -- the Gabor transform -- with which Gabor's expansion coefficients can be determined, are ...
Geilen, M.C.W.; id_orcid +7 more
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