Results 31 to 40 of about 90,189 (301)
Instantaneous Frequency Representation Used for CPA Laser Simulation
Applied Sciences, 2021 In the current study, we present a novel intuitive graphical method for the simulation of nonlinear effects on stretched pulses, characterized by a large time-bandwidth product.
Thomas Oksenhendler +2 more
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Advances in Mechanical Engineering, 2023 Mechanical equipment often works on variable speed condition, its corresponding vibration signal presents multi-component, modulation coupling with fast time-varying instantaneous frequency (IF), how to effectively compute IF and realize fasting varying ...
Lu Yan +7 more
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Definition of instantaneous frequency on real signals [PDF]
, 2000 This paper introduces a definition of the instantaneous frequency (IF) on real signals. Basically the definition ωt = xt/√1 - x2t avoids some pitfalls associated with the corresponding definition on analytic signals.
Saliu, Sokol,
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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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Use of the Cross Wigner-Ville Distribution for Estimation of Instantaneous Frequency [PDF]
, 1993 This correspondence presents an iterative instantaneous frequency (IF) estimation scheme in which successive IF estimates are obtained from the peak of the cross Wigner-Ville distribution (XWVD) using a reference signal synthesized from an initial IF ...
Oshea, P +3 more
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Adaptive Window Zero-Crossing-Based Instantaneous Frequency Estimation
EURASIP Journal on Advances in Signal Processing, 2004 We address the problem of estimating instantaneous frequency (IF) of a real-valued constant amplitude time-varying sinusoid. Estimation of polynomial IF is formulated using the zero-crossings of the signal.
Sekhar S Chandra, Sreenivas TV
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Instantaneous frequency estimation using the cross Wigner-Ville distribution with application to nonstationary transient detection [PDF]
, 1990 : A method based on an iterative procedure incorporating time-frequency distributions (TFDs) is proposed for instantaneous frequency (IF) estimation of rapidly time-varying signals.
Boashash, Boualem, O'Shea, Peter J.
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The Use of Digital Phase Locked Loops for Estimation of Instantaneous Frequency Rate in Distributed Power Networks [PDF]
, 2007 A power system disturbance scenario which is of particular interest is that which occurs when one or more generators in a distributed power system is 'taken out'.
S.-c. Kam +5 more
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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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Instantaneous Frequency Estimation By Group Delay Attractors And Instantaneous Frequency Attractors
, 2014 Publication in the conference proceedings of EUSIPCO, Lisbon, Portugal ...
Soo-Chang Pei, Shih-Gu Huang
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