Results 31 to 40 of about 191,656 (292)
SPARSE SIGNAL RECONSTRUCTION USING REFINED INSTANTANEOUS FREQUENCY ESTIMATION
NED University Journal of Research, 2023 This study proposes an instantaneous frequency (IF) estimation and then applies this algorithm to reconstruct missing samples. The proposed IF estimation and sparse reconstruction algorithm is developed by adding a refinement step where the crude estimates of IFs and signal components are further improved through the re-estimation stage.
Sadiq Ali, Nabeel Ali Khan, Feroz Shah
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IF Estimation Using Spectrogram and Scalogram [PDF]
Journal of Electrical and Electronics Engineering, 2013 This paper presents the results obtained using an instantaneous frequency estimation method, based upon the detection of the peaks of the spectrogram and the scalogram.
REIZ Romulus, MORGOŞ Lucian
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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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A pde-Based Analysis of the Spectrogram Image for Instantaneous Frequency Estimation
Mathematics, 2021 Instantaneous frequency (IF) is a fundamental feature in multicomponent signals analysis and its estimation is required in many practical applications. This goal can be successfully reached for well separated components, while it still is an open problem
Vittoria Bruni +2 more
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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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On the Analytic Wavelet Transform
, 2010 An exact and general expression for the analytic wavelet transform of a real-valued signal is constructed, resolving the time-dependent effects of non-negligible amplitude and frequency modulation.
Lilly, Jonathan M., Olhede, Sofia C.
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An Efficient Algorithm for Instantaneous Frequency Estimation of Nonstationary Multicomponent Signals in Low SNR [PDF]
, 2011 A method for components instantaneous frequency (IF) estimation of multicomponent signals in low signal-to-noise ratio (SNR) is proposed. The method combines a new proposed modification of a blind source separation (BSS) algorithm for components ...
Boualem Boashash +2 more
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Franklin OpenMany real-life non-stationary signals, such as jammers or communication signals, exhibit abrupt transitions in instantaneous frequency. Estimating instantaneous frequencies of such signals is vital in applications involving interference mitigation in ...
Sadiq Ali, Nabeel Ali Khan
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Over-the-Air Synchronization of Time, Phase and Frequency in a Distributed Receiving System
IEEE Access, 2023 This paper addresses over-the-air synchronization of two distributed receivers connected to a fusion center via digital links. We distinguish between received signals’ synchronization and receiving channels’ synchronization.
Milos Janjic +3 more
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Probabilistic Modeling Paradigms for Audio Source Separation [PDF]
, 2010 This is the author's final version of the article, first published as E. Vincent, M. G. Jafari, S. A. Abdallah, M. D. Plumbley, M. E. Davies. Probabilistic Modeling Paradigms for Audio Source Separation. In W.
A. P.Dempster +10 more
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