Nonlinear H _∞ Control

Abstract

Consider the following standard control configuration. Let ∑ be a nonlinear system

$$ \begin{gathered} \dot x = f\left( {x,u,d} \right) \hfill \\ \Sigma :y = g\left( {x,u,d} \right) \hfill \\ z = h\left( {x,u,d} \right) \hfill \\ \end{gathered} $$

(1)

with two sets of inputs u and d, two sets of outputs y and z, and state x.