Analysis and Further Improvement of Fine Resolution Frequency Estimation Method From Three DFT Samples

Candan C.

IEEE SIGNAL PROCESSING LETTERS, vol.20, no.9, pp.913-916, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 9
  • Publication Date: 2013
  • Doi Number: 10.1109/lsp.2013.2273616
  • Journal Name: IEEE SIGNAL PROCESSING LETTERS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.913-916
  • Keywords: Cramer-Rao bound, frequency estimation, threshold effect
  • Middle East Technical University Affiliated: Yes

Abstract

The bias and mean square error (MSE) analysis of the frequency estimator suggested in [1] is given and an improved version of the estimator, with the removal of estimator bias, is suggested. The signal-to-noise ratio (SNR) threshold above which the bias removal is effective is also determined.