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Article Dans Une Revue Electronics Letters Année : 2011

Instantaneous frequency estimation of FM signals by Psi_B-energy operator

Résumé

Psi_B energy operator is an extension of the cross Teager-Kaiser energy operator which is an non-linear energy tracking operator to deal with complex signals and its usefulness for non-stationary signals analysis has been demonstrated. In this letter two new properties of Psi_B are established. The first property is the link between Psi_B and the dynamic signal which is a generalization of the Instantaneous Frequency (IF). The second property obtained for frequency modulated signals is a simple way to estimate the IF. These properties confirm the interest of Psi_B operator to track the non-stationary of a signal. Results of IF estimation in noisy environment of a non-linear FM signal are presented and comparison to Wigner-Ville distribution and Hilbert transform-based method is provided.
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Dates et versions

hal-01081613 , version 1 (10-11-2014)

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  • HAL Id : hal-01081613 , version 1

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Abdelouahab Boudraa. Instantaneous frequency estimation of FM signals by Psi_B-energy operator. Electronics Letters, 2011, 47 (10), pp.623-624. ⟨hal-01081613⟩
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