An upper bound of /spl mu/ based on the parameter dependent multipliers

The structured singular value /spl mu/ is effective for system analysis and controller synthesis. However, since it is difficult to compute it analytically, its upper bound is used in most cases. This paper gives new upper bounds of the structured singular value /spl mu/ based on parameter dependent multipliers. The upper bounds can be computed via a finite set of LMIs. Numerical examples show their effectiveness.