Grassi, Stefano; Nonejad, Nima; Magistris, Paolo Santucci de - School of Economics and Management, University of Aarhus - 2014
A modification of the self-perturbed Kalman filter of Park and Jun (1992) is proposed for the on-line estimation of models subject to parameter instability. The perturbationterm in the updating equation of the state covariance matrix is weighted by the measurement error variance, thus avoiding...