Stable controller coefficient perturbation
in floating point implementation
National Key Laboratory of Industrial Control Technology
Institute of Advanced Process Control
P. R. China
Department of Electronics and Computer Science
University of Southampton, Highfield
Southampton SO17 1BJ
1 DESCRIPTION OF THE PROBLEM
A square real matrix is said to be stable if its eigenvalues are all in the interior of the unit disc.
Consider a stable discrete-time closed-loop control system, consisting of a linear time invariant plant P(z) ...