Analysis and Further Improvement of Fine Resolution Frequency Estimation Method From Three DFT Samples
IEEE SIGNAL PROCESSING LETTERS, vol.20, no.9, pp.913-916, 2013 (SCI-Expanded, Scopus)
- 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.