Results 1 to 10 of about 6,732,839 (289)
Nonparametric frequency domain analysis of nonstationary multivariate time series [PDF]
, 2002 We analyse the properties of nonparametric spectral estimates when applied to long memory and trending nonstationary multiple time series. We show that they estimate consistently a generalized or pseudo-spectral density matrix at frequencies both close ...
Velasco, Carlos
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Time-frequency analysis-based deep interference classification for frequency hopping system
EURASIP Journal on Advances in Signal Processing, 2022 It is known that interference classification plays an important role in protecting the authorized communication system and avoiding its performance degradation in the hostile environment.
Changzhi Xu +6 more
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Time and Frequency Domain Dynamic Analysis of Offshore Mooring
Journal of Marine Science and Engineering, 2021 The numerical procedures for dynamic analysis of mooring lines in the time domain and frequency domain were developed in this work. The lumped mass method was used to model the mooring lines. In the time domain dynamic analysis, the modified Euler method
Shi He, Aijun Wang
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Effect of sparsity-aware time–frequency analysis on dynamic hand gesture classification with radar micro-Doppler signatures [PDF]
, 2018 Dynamic hand gesture recognition is of great importance in human-computer interaction. In this study, the authors investigate the effect of sparsity-driven time-frequency analysis on hand gesture classification.
Fioranelli, Francesco +3 more
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Elementary Time Frequency Analysis of EEG Signal Processing
EAI Endorsed Transactions on Pervasive Health and Technology, 2018 EEG analysis is used as a tool for medical diagnosis of various diseases related to brain like epilepsy, dementia, brain disorders like stress etc. To identify such neural disorders it is essential to process these signal because of the nonstationary ...
Parag Puranik +2 more
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Analysis of time-frequency scattering transforms
, 2018 In this paper we address the problem of constructing a feature extractor which combines Mallat's scattering transform framework with time-frequency (Gabor) representations. To do this, we introduce a class of frames, called uniform covering frames, which
Czaja, Wojciech, Li, Weilin
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LEAST SQUARES MULTI-WINDOW EVOLUTIONARY SPECTRAL ESTIMATION
Electrica, 2003 We present a multi-window method for obtaining the time-frequency spectrum of non-stationary signals such as speech and music. This method is based on optimal combination of evolutionary spectra that are calculated by using multi-window Gabor expansion ...
Mahmut YALÇIN, Aydın AKAN
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Semi-classical Time-frequency Analysis and Applications
, 2016 This work represents a first systematic attempt to create a common ground for semi-classical and time-frequency analysis. These two different areas combined together provide interesting outcomes in terms of Schr\"odinger type equations.
Cordero, Elena +2 more
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Application of the Hilbert-Huang Transform to the Search for Gravitational Waves [PDF]
, 2007 We present the application of a novel method of time-series analysis, the Hilbert-Huang Transform, to the search for gravitational waves. This algorithm is adaptive and does not impose a basis set on the data, and thus the time-frequency decomposition it
Camp, Jordan B. +2 more
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Analysis of multicarrier frequency diverse array radar over time
IET Signal Processing, 2022 The frequency diverse array (FDA) can provide degrees of freedom in both the range and angle domains by controlling the frequency offset across adjacent elements.
Yingjian Zhao +5 more
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