Nonlinear Feedback Stabilization Revisited

Methods of feedback design are undergoing an exceptionally rich period of progress and maturation, fueled to a great extent by the discovery of new conceptual notions as well as by the systematic application of certain ideas such as that of control-Lyapunov functions (clf’s). This paper, which can be seen as an updated version of [22], discusses the problem of state stabilization, the understanding of which is a fundamental prerequisite to the solution of control problems such as tracking, disturbance rejection, output feedback, or adaptive and robust design.

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