Results 21 to 30 of about 234,598 (330)
IEEE Transactions on Signal Processing, 2022 In this paper, our goal is first to investigate the behavior of reassignment operators used in synchrosqueezing transforms applied to multicomponent signals made of the superposition of amplitude and frequency modulated modes.
S. Meignen, Neha Singh
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Remote Sensing, 2023 In ground-penetrating radar (GPR) or lunar-penetrating radar (LPR) interpretation, instantaneous attributes (e.g., instantaneous energy and instantaneous frequency) are often utilized for attribute analysis, and they can also be integrated into a new ...
Xuebing Zhang +6 more
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Power spectrum slope confounds estimation of instantaneous oscillatory frequency
NeuroImage, 2022 Oscillatory neural dynamics are highly non-stationary and require methods capable of quantifying time-resolved changes in oscillatory activity in order to understand neural function.
Jason Samaha, Michael X. Cohen
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Machines, 2022 The vibration signal from the rotatory machinery condition monitoring under time-varying speed is usually amplitude-modulated (AM) and frequency-modulated (FM).
Yuexin Huang +4 more
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Advances in Mechanical Engineering, 2020 An improved instantaneous frequency estimation algorithm for rotating machines based on a kernel-based fuzzy C-means clustering (KFCM) algorithm used in association with a spectral centroid algorithm is proposed in this study. The clustering algorithm is
Zhai Hua +4 more
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Probabilistic Estimation of Instantaneous Frequencies of Chirp Signals
IEEE Transactions on Signal Processing, 2023 Accepted for publication in IEEE Transactions on Signal ...
Sarkka, Simo +4 more
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Adaptive Photonic Microwave Instantaneous Frequency Estimation Using Machine Learning
IEEE Photonics Technology Letters, 2021 Instantaneous microwave frequency estimation enables numerous essential applications in the commercial, defense, and civilian marketplace. The advancement of applications is hindered by the bottleneck in electronic-based frequency measurement systems ...
Qidi Liu, Benjamin Gily, M. Fok
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Kernel estimation of the instantaneous frequency [PDF]
IEEE Transactions on Signal Processing, 1994 We consider kernel estimators of the instantaneous frequency of a slowly evolving sinusoid in white noise. The expected estimation error consists of two terms. The systematic bias error grows as the kernel halfwidth increases while the random error decreases.
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Instantaneous Frequency-Embedded Synchrosqueezing Transform for Signal Separation
Frontiers in Applied Mathematics and Statistics, 2022 The synchrosqueezing transform (SST) and its variants have been developed recently as an alternative to the empirical mode decomposition scheme to model a non-stationary signal as a superposition of amplitude- and frequency-modulated Fourier-like ...
Qingtang Jiang +3 more
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Applied Sciences, 2021 Synchrosqueezing transform (SST) can effectively improve time-frequency precision and resolution by squeezing time-frequency spectra via instantaneous frequencies, and it has been applied in many diverse disciplines; however, the precision of estimated ...
Yong Li, Gulan Zhang
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