Frequency errors in spectral estimates of complex sinusoids in white noise by the ″tapered″ Burg technique are discussed. The tapered Burg technique is a direct result of considering a weighted least-squares fit to the parameters of the all-pole model, subject to Levinson's recursion constraint, in place of the usual unweighted least-squares fit. The algorithmic consequence of this approach is the inclusion of an appropriate taper in the calculation of the partial-correlation coefficients in the usual Burg algorithm. Based on the expression for the frequency error in the spectral estimate of a sinusoid, an optimum taper is then compared with those of the rectangular (untapered Burg) and Hamming tapers.
|Original language||English (US)|
|Number of pages||4|
|Journal||ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings|
|State||Published - Jan 1 1981|
|Event||Unknown conference - Atlanta, Ga|
Duration: Mar 30 1981 → Apr 1 1981