Kybernetika 32 no. 6, 615-624, 1996

The invariant polynomial assignment problem for linear periodic discrete-time systems

Leopoldo Jetto and Sauro Longhi


This paper considers the problem of assigning the closed loop invariant polynomials of a feedback control system, where the plant is a linear, discrete-time, periodic system. By a matrix algebraic approach, necessary and sufficient conditions for problem solvability are established and a parameterization of all periodic output controllers assigning the desired invariant polynomials is given.


93B55, 93C55