Two-Kalman filters approach for unbiased AR parameter estimation from noisy observations, application to speech enhancement. - David Labarre; Éric Grivel; Mohamed Najim; Ezio Todini (EUSIPCO, 2004)

Two-Kalman filters based instrumental variable techniques for speech enhancement. - David Labarre; Éric Grivel; Mohamed Najim; Ezio Todini (MMSP, 2004)

Consistent estimation of autoregressive parameters from noisy observations based on two interacting Kalman filters. - David Labarre; Éric Grivel; Yannick Berthoumieu; Ezio Todini; Mohamed Najim (Signal Process., 2006)