Title :
Periodic discrete-time systems: stability analysis and robust control using zero placement
Author :
Das, Sarit K. ; Rajagopalan, P.K.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Kharagpur, India
fDate :
3/1/1992 12:00:00 AM
Abstract :
A simple method (based on Floquet theory) for obtaining the characteristic equation (and hence stability) of periodic discrete-time systems is presented. Using this method it is shown that 2-periodic controllers can be used to relocate the zeros of SISO plants. Some examples are considered to illustrate the use of 2-periodic controllers for robust control of finite gain margin problems
Keywords :
discrete time systems; poles and zeros; stability; 2-periodic controllers; Floquet theory; SISO plants; characteristic equation; finite gain margin; periodic discrete-time systems; robust control; stability analysis; zero placement; Coordinate measuring machines; Filters; Position measurement; Robust control; Sea measurements; Stability analysis; State estimation; Target tracking; Time measurement; Trajectory;
Journal_Title :
Automatic Control, IEEE Transactions on
