Adaptive instantaneous frequency estimation of multi-component FM signals

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Adaptive instantaneous frequency estimation of multi-component FM signals

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dc.contributor.author Hussain, Z.M.
dc.contributor.author Boashash, B
dc.date.accessioned 2011-09-28T18:46:08Z
dc.date.available 2011-09-28T18:46:08Z
dc.date.issued 2000
dc.identifier.citation Proceedings 2000 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Issue Date : 2000 Volume : 2 On page(s): II657 en_US
dc.identifier.isbn 0-7803-6293-4
dc.identifier.uri http://hdl.handle.net/10576/10749
dc.description This paper presents a method to estimate the IF law of a multi-component signal using quadratic TFDs with reduced interference. The B-distribution is selected and it is proved that an adaptive algorithm with time varying widow length is necessary. (The most recent upgrade of the original software package that calculates Time-Frequency Distributions and Instantaneous Frequency estimators can be downloaded from the web site: www.time-frequency.net. This was the first software developed in the field, and it was first released publicly in 1987 at the 1st ISSPA conference held in Brisbane, Australia, and then continuously updated). en_US
dc.description.abstract Estimation of the instantaneous frequency (IF) of multicomponent FM signals with additive Gaussian noise is considered. A reduced interference distribution (RID) with high resolution is used for time-frequency representation of signals. If the IF law is a nonlinear function of time, the bias and variance of the estimate depend on the window length. The optimal window length for bias-variance tradeoff depends on the unknown IF law, hence calling for an adaptive algorithm with time-varying and data-driven window length to resolve this tradeoff. The adaptive estimation of multiple IF laws is based on tracking the component maxima in the time-frequency plane. Simulation results for multi-component signals are comparable with those obtained for mono-component signals when the components are well separated. en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.subject IF law en_US
dc.subject adaptive algorithm en_US
dc.subject adaptive instantaneous frequency estimation en_US
dc.subject additive Gaussian noise en_US
dc.subject bias en_US
dc.subject bias-variance tradeoff en_US
dc.subject data-driven window length en_US
dc.subject multi-component FM signals en_US
dc.subject nonlinear function en_US
dc.subject reduced interference distribution en_US
dc.subject resolution en_US
dc.subject time-frequency plane en_US
dc.subject time-frequency representation en_US
dc.subject time-varying window length en_US
dc.subject tracking en_US
dc.subject variance en_US
dc.subject window length en_US
dc.subject time-frequency analysis en_US
dc.subject IF estimation en_US
dc.subject Quadratic Time-Frequency Distributions en_US
dc.subject Wigner-Ville Distribution en_US
dc.subject B distribution en_US
dc.title Adaptive instantaneous frequency estimation of multi-component FM signals en_US
dc.type Article en_US

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