Correspondence Comments on ‘Robust optimal parametric LQ control with a guaranteed cost bound and applications’

Abstract

In a recent paper Hu and Loh (1989) addressed the problem of designing robust controllers with guaranteed bounds on a given performance index. The purpose of this note is to point-out several incorrect results presented there.

Additional information

Notes on contributors

MARIO SZNAIER

Present address: Electrical Engineering Department, University of Central Florida, Orlando, FL 32816, U.S.A.