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Muscle Co-Contraction Detection in the Time–Frequency Domain [PDF]
Sensors, 2022 Background: Muscle co-contraction plays a significant role in motion control. Available detection methods typically only provide information in the time domain.
Francesco Di Nardo +3 more
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A Time–Frequency Domain Analysis Method for Variable Frequency Hopping Signal [PDF]
SensorsA variable frequency hopping (VFH) signal is a kind of frequency hopping (FH) signal that varies both in frequency and dwell time. However, in radio surveillance, the existing methods for unidentified signals using VFH cannot be effectively handled.
Zhengzhi Zeng +3 more
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A Time–Frequency Domain Diagnosis Network for ICE Fault Detection [PDF]
SensorsInternal combustion engines (ICEs) are prone to faults such as abnormal injection pressure and valve clearance, but traditional diagnosis methods struggle with feature extraction and require large data volumes, limiting real-time applications.
Daijie Tang +3 more
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Harmonics Signal Feature Extraction Techniques: A Review
Mathematics, 2023 Harmonic estimation is essential for mitigating or suppressing harmonic distortions in power systems. The most important idea is that spectrum analysis, waveform estimation, harmonic source classification, source location, the determination of harmonic ...
Minh Ly Duc, Petr Bilik, Radek Martinek
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Time- vs. Frequency-domain Identification of Parametric Radiation Force Models for Marine Structures at Zero Speed [PDF]
Modeling, Identification and Control, 2008 The dynamics describing the motion response of a marine structure in waves can be represented within a linear framework by the Cummins Equation. This equation contains a convolution term that represents the component of the radiation forces associated ...
Tristan Perez, Thor I. Fossen
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Feature Extraction Methods for Electroretinogram Signal Analysis: A Review
IEEE Access, 2021 Feature extraction is an essential aspect of electroretinogram (ERG) signal analysis. The extracted features are beneficial to analyze the signal further and compress the signal for storage or transmission purposes.
Soroor Behbahani +2 more
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Speech Enhancement Based on Time-Frequency Domain GAN [PDF]
Jisuanji kexue, 2022 The traditional speech enhancement algorithm based on generative adversarial networks (SEGAN) enhances speech in the time domain,and completely ignores the distribution of speech samples in frequency domain.Under the condition of low signal-to-noise ...
YIN Wen-bing, GAO Ge, ZENG Bang, WANG Xiao, CHEN Yi
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Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2011 Presented paper focuses on consideration and evaluation of methodical approaches to analyze cyclical structure character of economic activity in transition economy.
Jitka Poměnková +2 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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Frequency-Domain Analysis of Linear Time-Periodic Systems [PDF]
, 2004 In this paper, we study convergence of truncated representations of the frequency-response operator of a linear time-periodic system. The frequency-response operator is frequently called the harmonic transfer function. We introduce the concepts of input,
Bernhardsson, Bo +2 more
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