Optimizing simultaneously over the numerator and denominator polynomials in the Youla-Kuc/spl caron/era parametrization

Henrion, D., Kucera, V. and Molina-Cristobal, A. (2005) Optimizing simultaneously over the numerator and denominator polynomials in the Youla-Kuc/spl caron/era parametrization. IEEE Transactions on Automatic Control, 50(9), pp. 1369-1374. (doi: 10.1109/TAC.2005.854618)

Abstract

Traditionally, when approaching controller design with the Youla-Kuc/spl caron/era parametrization of all stabilizing controllers, the denominator of the rational parameter is fixed to a given stable polynomial, and optimization is carried out over the numerator polynomial. In this note, we revisit this design technique, allowing to optimize simultaneously over the numerator and denominator polynomials. Stability of the denominator polynomial, as well as fixed-order controller design with H/sub /spl infin// performance are ensured via the notion of a central polynomial and linear matrix inequality (LMI) conditions for polynomial positivity.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Molina-Cristobal, Dr Arturo
• Authors: Henrion, D., Kucera, V., and Molina-Cristobal, A.
• College/School: College of Science and Engineering > School of Engineering
• Journal Name: IEEE Transactions on Automatic Control
• Publisher: IEEE
• ISSN: 0018-9286
• ISSN (Online): 1558-2523
• Published Online: 12 September 2005