Finite– and fixed–time observers for uncertain multiple–outputs linear systems with unknown inputs

In this paper a family of homogeneity–based observers is proposed to estimate the state class multiple–outputs linear systems with some parametric uncertainties and unknown inputs. Such possesses robustness, finite– fixed–time convergence properties depending on considered The structure these simple since requires neither additional observers, for an priori stabilization, nor complex transformations, allows us straightforwardly apply case multiple–outputs. based relative degree sufficient conditions that imply strong observability system. Some simulation results illustrate performance homogeneous observers.