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

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

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Title: Instantaneous frequency estimation of quadratic and cubic FM signals using the cross polynomial Wigner-Ville distribution
Author: Ristic, B; Boashash, Boualem
Abstract: 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).
Description: The cross-PWVD based IF estimator attains the Cramer-Rao bound at low SNR for quadratic and cubic FM signals.
URI: http://hdl.handle.net/10576/10666
Date: 1996-06

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