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Linear-predictive data extrapolation narrow-band spectral estimation

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2 Author(s)
Swingler, D.N. ; Div. of Eng., Saint Mary''s Univ., Halifax, NS, Canada ; Walker, R.S.

It is demonstrated that T.J. Ulrych et al.'s (J. Geophys., Res., vol.78, p.4959-64, 1973) hybrid Fourier-Burg method of narrowband spectral estimation has significant advantages which may have been overlooked. Apart from improved resolution in comparison to the conventional Fourier approach, it also exhibits reduced sensitivity to model order compared to the Burg maximum-entropy-method algorithm. Additionally, the hybrid method has a frequency-estimation variance which is less than that of the Burg technique, approaching that of the conventional (unwindowed) Fourier method for low signal/noise ratio. Finally, it can provide for enhanced tonal detection in some instances

Published in:

Proceedings of the IEEE  (Volume:76 ,  Issue: 9 )