This book aims to demonstrate the power and breadth of polynomial
methods in control and filtering. Direct polynomial methods have
previously received little attention compared with the alternative
Wiener-Hopf transfer-function method and the statespace methods which
rely on Riccati equations.
The book provides a broad coverage of the polynomial equation approach
in a range of linear control and filtering problems. The principal
feature of the approach is the description of systems in fractional form
using transfer functions. This representation leads quite naturally and
directly to the parameterisation of all 'acceptable' feedback
controllers for a given problem in the form of a Diophantine equation
over polynomials. In the polynomial equation approach, this direct
parameterisation is explicitly carried through to the synthesis of
controllers and filters and, further, to the computer implementation of
numerical algorithms.
The book is likely to be of interest to students, researchers and
engineers with some control and systems theory or signal processing
background. It could be used as the basis of a graduate-level course in
optimal control and filtering. The book proceeds from the necessary
background material presented at a tutorial level, through recent
theoretical and practical developments, to a detailed presentation of
numerical algorithms.