A NEW METHODOLOGY FOR OBSERVER DESIGN AND IMPLEMENTATION

Observers are usually formulated as explicit systems of differential e quations and implemented using standard ODE solvers, In this paper, we show that there can be advantages in formulating the observer as a di fferential-algebraic equation (DAE), We propose a canonical DAE observ er and show that it can be implemented using standard DAE solvers, The DAE implementation of the observer can be considered regardless of th e design philosophy used. We present a simple design strategy for this canonical DAE observer based on the extended linearization method.