In this paper we consider the use of linear periodic controllers to solve a tracking problem in the face of time-varying multiplicative gain uncertainty. The class of signals to be tracked is modelled by a (stable) filter on the reference input.We show, under the technical assumption that the relative degree of the filter is greater than the plant, that… (More)

@article{Vale2008TrackingIT,
title={Tracking in the presence of a time-varying uncertain gain},
author={J. R. Vale and D. E. Miller},
journal={2008 46th Annual Allerton Conference on Communication, Control, and Computing},
year={2008},
pages={438-445}
}