E. Mosca et C. Nava, IDENTIFICATION AND DYNAMIC WEIGHTS FOR LQG CONTROL WITH INTEGRAL ACTION, IEE proceedings. Control theory and applications, 142(6), 1995, pp. 647-653
The authors describe how to construct systematically a prefilter for t
he data entering the identifier, when the task of the latter is to pro
vide a reduced-order plant model to be used for offset-free LQG contro
l with integral action. The problem of choosing suitable dynamic weigh
ts for the control performance index is also addressed via a complemen
tary identification procedure acting on the residual errors.