IF estimation using higher order TFRs

Instantaneous frequency estimation of arbitrary polynomial phase signals is shown to be feasible using higher order time–frequency representations such as L-Wigner distribution and complex time–frequency representation. These new extensions of the iterative cross-Wigner distribution based algorithm...

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Published in:Signal processing 2002-02, Vol.82 (2), p.127-132
Main Authors: Viswanath, G., Sreenivas, T.V.
Format: Article
Language:English
Subjects:
Applied sciences
Detection, estimation, filtering, equalization, prediction
Exact sciences and technology
Information, signal and communications theory
Instantaneous frequency
Signal and communications theory
Signal, noise
Telecommunications and information theory
Time–frequency representation
Wigner distribution
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description Instantaneous frequency estimation of arbitrary polynomial phase signals is shown to be feasible using higher order time–frequency representations such as L-Wigner distribution and complex time–frequency representation. These new extensions of the iterative cross-Wigner distribution based algorithm are shown to have certain computational advantage as well as noise robustness.
doi_str_mv 10.1016/S0165-1684(01)00168-2
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subjects Applied sciences
Detection, estimation, filtering, equalization, prediction
Exact sciences and technology
Information, signal and communications theory
Instantaneous frequency
Signal and communications theory
Signal, noise
Telecommunications and information theory
Time–frequency representation
Wigner distribution
title IF estimation using higher order TFRs
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