Nonlinear control design of a hypersonic aircraft using sum-of-squares method

Abstract

The main focus of this paper is on developing a state feedback nonlinear controller for a hypersonic aircraft using the Sum-Of-Squares (SOS) approach. The SOS technique allows the joint search of a Lyapunov function and a nonlinear controller using semidefinite programs. Different from the aproximate linearization and feedback linearization methords, the approach proposed in this paper cause less conservatism. Simulation results are presented to evaluate the stability and performance of the controller. © 2011 Springer-Verlag.