Design nonlinear controller H∞ static output feedback over channel flying body of elastic effect: iterative sum of square method ISOS

In this paper, problem design a controller of H∞ static output feedback for a flying vehicle of above channel of elastic effect is investigated. Equations of motion of the flying vehicle, even in a channel in the presence of elastic effects, is the nonlinear equations. Design nonlinear Robust H∞ controller for nonlinear control systems are complex issues. Sufficient conditions for the existence of a nonlinear H∞ static output controller in terms of solvability of a polynomial matrix inequalities is given. The method used to design the controller guarantees that the closed-loop system is stable and gain-L2 mapping of the external input noise to the regulated output is less than or equal to a defined value.