Ever since the beginnings of mankind eons ago, the desire to control,
regulate, and track even under persistent disturbances has been a
dominating influence in the development of human civilization. It is so
also in the development of Automatic Control Theory and its
Applications. The subject of output regula- tion occupies a central
theme in all endeavors of theoreticians and practition- ers alike. Yet
there is no book or monograph that brings all essential modem
developments on output regulation under a single cover. This book is
intended to fill this void. Main topics that are brought together in
this book include among oth- ers, classical exact output regulation of
linear systems along with its differ- ent facets of well-posedness,
internal model principle, and structural stability; output regulation of
linear systems with input amplitude and rate saturation constraints;
output regulation with transient performance specifications; per-
formance issues (such as H2, H, L1 and others) with an output regulation
oo constraint; generalized output regulation in which the set of
tracking signals as well as the set of disturbances that act on the
plant are broadened beyond those that are common in classical output
regulation, and thus permitting us to deal with exact as well as almost
output regulation under a variety of controllers, etc.