Title :
Analysis and Further Improvement of Fine Resolution Frequency Estimation Method From Three DFT Samples
Author_Institution :
Dept. of Electr. & Electron. Eng., Middle East Tech. Univ. (METU), Ankara, Turkey
Abstract :
The bias and mean square error (MSE) analysis of the frequency estimator suggested in 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.
Keywords :
discrete Fourier transforms; error analysis; frequency estimation; mean square error methods; signal resolution; DFT samples; MSE; SNR; bias analysis; discrete Fourier transform; estimator bias removal; fine resolution frequency estimation method; mean square error analysis; signal-to-noise ratio threshold; Discrete Fourier transforms; Estimation; Frequency estimation; Jacobian matrices; Random variables; Signal to noise ratio; Cramer–Rao bound; frequency estimation; threshold effect;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2013.2273616
