System identification: theory for the user
System identification: theory for the user
System identification
Automatica (Journal of IFAC)
Automatica (Journal of IFAC)
Convergence properties of the generalised least squares identitication method
Automatica (Journal of IFAC)
Box-Jenkins alike identification using nonparametric noise models
Automatica (Journal of IFAC)
Identification of linear systems with nonlinear distortions
Automatica (Journal of IFAC)
Hi-index | 22.15 |
This paper shows that the full covariance matrix can be replaced by its main diagonal in maximum likelihood estimation (MLE) of linear dynamic systems in the time or frequency domain without affecting the asymptotic properties. This is a very important result for frequency-domain identification since it allows to use nonparametric noise models. It also provides a theoretical justification for the common practice in time-domain identification to neglect the initial condition effects of the noise model.