An Unknown Input Full Order Observer Design Using g-Inverse and Comparison with O'Reilly Observer

In this paper simpler and step by step procedure for the construction of unknown input full order observer is developed based on the concept of generalized matrix inverse. This unknown input observer is simpler in structure, computationally less complex and does not presuppose the observer structure. Condition of existence is derived. The simulation results are included. Moreover, in this paper a detailed comparative analysis between full order unknown input O'Reilly observer and the method developed in this paper is carried out based on structure and performance.