Nonlinear H/sub /spl infin// control of periodic orbits

Studies nonlinear state feedback H/sub /spl infin// control of periodic orbits. The authors develop a nonlinear analogy of the current state space theory of H/sub /spl infin// control, namely the solution of the state feedback H/sub /spl infin// control problem, for nonlinear systems having periodic orbits. The authors use a new set of coordinates proposed in Hauser and Chung Choo Chung (1994) to develop nonlinear state feedback H/sub /spl infin// control of periodic orbits.