Pd Observer Parameterization Design for Descriptor Systems

Based on the design of proportional and derivative (PD) observers, a new parameterization of all observers for descriptor systems is developed. Without using any additional transformations, the present observer parameterization is convenient and efficient to be performed. The connections between the proposed parameterization and the known ones are established. For descriptor systems with bounded input disturbances, the estimation error dynamics are parameterized with respect to the disturbance vectors. An example is included to illustrate the parameterization procedures