A new adaptive scheme is presented to estimate the state vector and identify the variable parameters of a single-input, single-output, nth order linear system; The approach taken here proceeds from a discrete formulation of the problem and a complete separation between the identification and estimation steps. One originality of this approach is the on-line determination of the observer parameters. Conversely to the other methods the observer design becomes very easy and can be extended to multivariable systems.
"A New Approach For Adaptive Observer Design", Proc. SPIE 0853, IECON '87: Industrial Applications of Control and Simulation, (19 October 1987); doi: 10.1117/12.942951; https://doi.org/10.1117/12.942951