Homogeneous state feedback stabilization of homogeneous systems
L. Grüne:
Homogeneous state feedback stabilization of homogeneous systems
SIAM Journal on Control and Optimization
38,
1288 - 1214,
2000
DOI:
10.1137/S0363012998349303
Keywords: homogeneous feedback; control Lyapunov function; Lyapunov exponents; stabilization; discretized feedback
Download as PDF
Abstract:
We show that for any asymptotically controllable homogeneous system in euclidian space (not necessarily Lipschitz at the origin) there exists a homogeneous control Lyapunov function and a homogeneous, possibly discontinuous state feedback law stabilizing the corresponding sampled closed loop system. If the system satisfies the usual local Lipschitz condition on the whole space we obtain semi-global stability of the sampled closed loop system for each sufficiently small fixed sampling rate, if the system satisfies a global Lipschitz condition we obtain global exponential stability for each sufficiently small fixed sampling rate. The control Lyapunov function and the feedback are based on the Lyapunov exponents of a suitable auxiliary system and admit a numerical approximation.