Research Article

LMI-Based Robust Stabilization of a Class of Input-Constrained Uncertain Nonlinear Systems with Application to a Helicopter Model

Figure 8

Temporal evolution of the two states and of the uncertain disturbed nonlinear system (15) and the saturated affine state-feedback control law u for the saturation level . Here, the initial condition is selected to be outside the largest attractive invariant ellipsoid in Figure 4(a).
(a)
(b)