Improved methods for exponential parameter estimation in thepresence of known poles and noise

  • Authors:

  • Hua Chen;S. Van Huffel;J. Vandewalle

  • Affiliations:

  • Dept. of Electr. Eng., Eindhoven Univ. of Technol.;-;-

  • Venue:
  • IEEE Transactions on Signal Processing
  • Year:
  • 1997

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Abstract

By incorporating prior knowledge of known signal poles corresponding to some of the closely spaced sinusoids, Dowling et al. (see IEEE Trans. Antennas Propagat., vol.42, no.5, p.590-599, 1994) have proposed an LCTLS-FLP technique, which improves the performance of TLS-FLP. We present two better estimators that incorporate the same prior knowledge but clearly outperform LCTLS-FLP in resolution and parameter accuracy