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Minimum Separation of Line Spectral Frequencies

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3 Author(s)
Tom Backstrom ; Lab. of Acoust. & Audio Signal Process., Helsinki Univ. of Technol., Espoo ; Carlo Magi ; Paavo Alku

We provide a theoretical lower limit on the distance of line spectral frequencies for both the line spectrum pair decomposition and the immittance spectrum pair decomposition. The result applies to line spectral frequencies computed from linear predictive polynomials with all roots within a zero-centered circle of radius r<1

Published in:

IEEE Signal Processing Letters  (Volume:14 ,  Issue: 2 )