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Optimising Time-Frequency Distributions: A Surface Metrology Approach [PDF]
Sensors, 2023 Time-frequency signal processing offers a significant advantage over temporal or frequency-only methods, but representations require optimisation for a given signal. Standard practice includes choosing the appropriate time-frequency distribution and fine-
Damir Malnar, Miroslav Vrankic
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Method for Automatic Estimation of Instantaneous Frequency and Group Delay in Time–Frequency Distributions with Application in EEG Seizure Signals Analysis [PDF]
Sensors, 2023 Instantaneous frequency (IF) is commonly used in the analysis of electroencephalogram (EEG) signals to detect oscillatory-type seizures. However, IF cannot be used to analyze seizures that appear as spikes.
Vedran Jurdana +3 more
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Information Complexity of Time-Frequency Distributions of Signals in Detection and Classification Problems [PDF]
EntropyThe paper considers the problem of detecting and classifying acoustic signals based on information (entropy) criteria. A number of new information features based on time-frequency distributions are proposed, which include the spectrogram and its upgraded
Pavel Lysenko +3 more
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New Time-Frequency Distribution [PDF]
Circuits, Systems, and Signal Processing, 1995 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pei, Soo-Chang, Tsai, Er-Jung
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On positivity of time-frequency distributions [PDF]
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1985 Consideration is given to the problem of how to regard the fundamental impossibility with time-frequency energy distributions of Cohen's class always to be nonnegative and, at the same time, to have correct marginal distributions. It is shown that the Wigner distribution is the only member of a large class of bilinear time-frequency distributions that ...
Janssen, A.J.E.M., Claasen, T.A.C.M.
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Mathematics, 2023 In this paper, we study the connections between generalized mean operators and entropies, where the mean value operators are related to the strictly monotone logical operators of fuzzy theory. Here, we propose a new entropy measure based on the family of
József Dombi +2 more
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Rule-Based EEG Classifier Utilizing Local Entropy of Time–Frequency Distributions
Mathematics, 2021 Electroencephalogram (EEG) signals are known to contain signatures of stimuli that induce brain activities. However, detecting these signatures to classify captured EEG waveforms is one of the most challenging tasks of EEG analysis. This paper proposes a
Jonatan Lerga +3 more
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Power Quality Analysis Using Bilinear Time-Frequency Distributions
EURASIP Journal on Advances in Signal Processing, 2010 Bilinear time-frequency distributions (TFDs) are powerful techniques that offer good time and frequency resolution of time-frequency representation (TFR).
Sha'ameri AhmadZuri +1 more
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Robust Time-Frequency Distributions with Complex-Lag Argument
EURASIP Journal on Advances in Signal Processing, 2010 The robust time-frequency distributions with complex-lag argument are proposed. They can provide an accurate estimation of fast varying instantaneous frequency in the presence of noise with heavy-tailed probability density function.
Žarić Nikola +2 more
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Biomedical Engineering Advances, 2023 Time-Frequency Distributions (TFDs) support the heart sound characterisation and classification in early cardiac screening. However, despite the frequent use of TFDs in signal analysis, no comprehensive study has been conducted to compare their ...
Xinqi Bao +6 more
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