Finite-Time Identification Algorithm based on Time-Varying Homogeneity and Lyapunov Approach*. Issue 18 (2016)

• Record Type: Journal Article
• Authors: Ríos, H.; Efimov, D.; Moreno, J.A.; Perruquetti, W.
• Is Part Of: IFAC-PapersOnLine. Volume 49:Issue 18(2016)
• Page Start: 434
• Page End: 439
• Publication Date: 2016
• Subjects: Time-varying parameters -- Identification -- Finite-Time; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2016.10.204
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: In this paper the problem of time-varying parameter identification is studied. To this aim, an identification algorithm is developed in order to identify time-varying parameters in a finite-time. The convergence proofs are based on a notion of finite-time stability over finite intervals of time, i.e. Short-finite-time stability; homogeneity for time-varying systems; and Lyapunov function approach. The algorithm asks for a condition over the regressor term which is related to the classic identifiability condition corresponding to the injectivity of such a term. Simulation results illustrate the feasibility of the proposed algorithm.