Estimating parameters of sinusoids from noisy data using Bayesian inference with simulated annealing

  • Authors:
  • Dursun Üstündang;Mehmet Cevri

  • Affiliations:
  • The Department of Mathematics, The Faculty of Science and Letters, The University of Marmara, Istanbul, Turkey;The Department of Mathematics, The Faculty of Science and Letters, The University of Marmara, Istanbul, Turkey

  • Venue:
  • WSEAS Transactions on Signal Processing
  • Year:
  • 2008

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Abstract

In this paper, we consider Bayesian analysis proposed by Bretthorst for estimating parameters of the corrupted signals and incorporate it with a simulated annealing algorithm to obtain a global maximum of the posterior probability density of the parameters. Thus, this analysis offers different approach to find parameter values through a directed, but random, search of the parameter space. For this purpose, we developed a Mathematica code of this Bayesian approach and used it for recovering sinusoids corrupted by random noise. The simulation results support the effectiveness of the method.