The model-following problem has been expressed as an LQ-problem, and robustness achieved by including an exponential factor in the cost integrand. In this paper the observer-based case is considered and the inherent robustness of the model-following control for systems expressed in the second canonical form with respect to uncertainties in the system parameters is demonstrated.

The full text of this article is not available on SOAR. WSU users can access the article via IEEE Xplore database licensed by University Libraries: http://libcat.wichita.edu/vwebv/holdingsInfo?bibId=1045954