Hierarchical Second-Order Sliding-Mode Observer for Linear Systems with Unknown Inputs.

Leonid M. Fridman Alex Poznyak Francisco Javier Bejarano Hierarchical Second-Order Sliding-Mode Observer for Linear Systems with Unknown Inputs. 5561-5566 2006 CDC https://doi.org/10.1109/CDC.2006.377463 conf/cdc/2006 db/conf/cdc/cdc2006.html#FridmanPB06