A power spectral density estimation method and apparatus

Details A power spectral density estimation method and apparatus A power spectral density estimation method and apparatus

G - Physics

01

R

G01R 23/167 (2006.01) G10L 11/00 (2006.01)

Patent

CA 2224680

A residual error based compensator for the frequency domain bias of an autoregressive spectral estimator is disclosed. LPC analysis (16) is performed on the residual signal and a parametric PSD estimate (18) is formed with the obtained LPC parameters. The PSD estimate of the residual signal multiplies (20) the PSD estimate of the input signal.

L'invention porte sur un compensateur basé sur l'erreur résiduelle de la polarisation du domaine de fréquence d'un estimateur de spectre autorégressif. L'analyse à codage à prédiction linéaire (CPL) (16) s'effectue sur le signal résiduel et une estimation de la densité du spectre de puissance paramétrique (DSP) (18) est formée à l'aide des paramètres CPL obtenus. L'estimation de la DSP du signal résiduel multiplie (20) l'estimation de la DSP du signal d'entrée.

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