Abstract
A design method of universal model reference adaptive controllers for processes with uncertain relative degrees r, r+1 or r+2 (with known p/spl isin/N), and with unknown signs of high-frequency gains, is given. This is an extension of Morse's (1985) universal adaptive controllers where it was assumed that the relative degrees are uncertain but known to be 1 or 2. It is shown that single adaptive control schemes can deal with unknown signs of high-frequency gains, and enlarged uncertainties of relative degrees compared with the previous works, and that the resulting model reference adaptive control systems are asymptotically stable.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
