fRS – IQClab

The function [bound,muinfo,RSmargin]=fRS(M,om) computes the robust stability margins for the uncertain plant $M$ and for the frequency grid $\omega=[\omega_1,\ldots,\omega_N]$ . It returns the $\mu$ -ssv upper- and lower-bounds by means of the mussv command from the Robust Control Toolbox. The outputs are:

bound: A structure with the lower- and upper-bounds for each frequency $\omega\in[\omega_1,\ldots,\omega_N]$ .
muinfo: The $\mu$ -information obtained during the computations.
RSmargin: The robust stability margins.