Development of an alternative algorithm for a class of H-infinity design problems

This article presents a tutorial exposition of an algorithm suggested by Kwakernaak which is an alternative to the standard state space solution for a class of H-infinity, optimization problems. In addition, a set of formulae for the computation required is derived. From these formulae one can simply use an ordinary computer language to write a programme for the design purpose and therefore avoid an expensive expenditure on some software packages. A modification of a weighting function is also suggested. (C) 1997 by John Wiley & Sons, Ltd.