Observer-based control of a biped robot

Abstract

The problems under interest are the stabilization in single support of the vertical posture and the walking control of a three-link biped, via controllers and nonlinear observers. The control laws are designed, for the stabilization by using a linear model and the associated Jordan form, and for the walking a decoupling input-output linearization control. The observers are necessary to reconstruct the full state, viewed that the absolute angular value is not measured.