Discontinuous gradient algorithm for finite-time estimation of time-varying parameters

ABSTRACT

In this work, we present a discontinuous algorithm capable of estimating time-varying parameters in finite time. The measured output is assumed to be linear in the parameters, i.e. it corresponds to a linear parametric model. It is further assumed that the parameter variation is uniformly bounded, and that the regressor is sufficiently exciting as to make the parameters identifiable.

Keywords:

• Parameter estimation
• finite time
• sliding mode
• time varying

Additional information

Funding

The authors thank the financial support from PAPIIT-UNAM (Programa de Apoyo a Proyectos de Investigación e Innovación Tecnológica) (project IN113614); Fondo de Colaboración II-FI UNAM (project IISGBAS-100-2015); CONACyT (Consejo Nacional de Ciencia y Tecnología) (project 241171); and CONACyT CVU: 491701.