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System Identification and H∞ Observer Design for TRMSDOI: 10.7763/ijcee.2013.v5.773 Keywords: Black box system identification , H∞observer , TRMS , ARMAX. Abstract: A dynamic model for the two-degree-of-freedom Twin Rotor MIMO System (TRMS) is extracted using a blackbox system identification technique. Its behaviour in certain aspects resembles that of a helicopter, with a significant cross coupling between longitudinal and lateral directional motions. Hence, it is an interesting identification and control problem. Using the extracted model an H∞ observer is designed which will estimate the states of the system in presence of worst case noise assumed to be impact on the system.
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