Comparison of Kalman observer and H infinity observer designed for TRMS

In this paper the identified stochastic model for Twin Rotor MIMO system (TRMS) is used for designing Kalman observer and H infinity observer. The performance of Kalman observer and H infinity observer designed for Twin Rotor MIMO System are compared. In this case the process noise and measurement noise getting impact on the system is assumed to be worst case noise with unknown statistics. The H infinity observer results in better performance than the Kalman observer for TRMS under worst case noise impact on the uncertain system.