Title :
Robust stability of discrete-time systems using delta operators
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
fDate :
3/1/1991 12:00:00 AM
Abstract :
The robust stability of discrete-time systems formulated in terms of the delta (δ) operator is discussed. That is, given the nominal characteristic equation P(δ) of a discrete-time system, it is of interest to know how much the coefficients can be perturbed while preserving stability. A procedure to obtain the maximum intervals for a perturbed polynomial P(δ) to still be stable is presented
Keywords :
discrete time systems; polynomials; stability; delta operators; discrete-time systems; maximum intervals; nominal characteristic equation; perturbed polynomial; robust stability; Control theory; Costs; Equations; H infinity control; Linear systems; Mathematical model; Optimal control; Polynomials; Reduced order systems; Robust stability;
Journal_Title :
Automatic Control, IEEE Transactions on
