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Instantaneous frequency estimation of quadratic and cubic FM signals using the cross polynomial Wigner-Ville distribution

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2 Author(s)
Ristic, B. ; Signal Process. Res. Centre, Univ. of Technol., Brisbane, Australia ; Boashash, B.

The cross polynomial Wigner-Ville distribution (X-PWVD) is applied to instantaneous frequency (IF) estimation of polynomial FM signals. The X-PWVD is used in a simple iterative algorithm, similar to the one proposed by Boashash and O'Shea (see ibid., vol.41, no.3, p.1439, 1993) for the cross Wigner-Ville distribution (X-WVD). The advantage of the X-PWVD over the polynomial Wigner-Ville distribution is that the former is linear with respect to the observed signal and as a result it attains the Cramer-Rao bound at lower signal-to-noise ratios (SNRs)

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Signal Processing, IEEE Transactions on  (Volume:44 ,  Issue: 6 )