Adaptive window in the PWVD for the IF estimation of FM signals in additive Gaussian noise

نویسندگان

  • Braham Barkat
  • Boualem Boashash
  • LJubisa Stankovic
چکیده

The peak of the polynomial Wigner-Ville distribution is known to be a consistent estimator of the instantaneous frequency for polynomial FM signals. In this paper, we present an algorithm for the design of an optimal time-varying window length for this estimator when noisy non-linear, not necessarily polynomial, FM signals are considered. The results obtained show that the estimator is accurate and outperforms any xed window time-frequency distribution based estimator.

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تاریخ انتشار 1999