Identification of Wiener and Hammerstein Systems with Rate Saturation


Cham, Chin Leei and Tan, Ai Hui and Yong, A. Y. K. (2019) Identification of Wiener and Hammerstein Systems with Rate Saturation. In: 2018 IEEE International Conference on Automatic Control and Intelligent Systems, I2CACIS 2018, 20-20 Oct. 2018, Shah Alam, Malaysia.

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This paper proposes the use of the coherence function for distinguishing between a Wiener structure and a Hammerstein structure for systems with rate saturation nonlinearity. This is an important extension in the application of the coherence function from the usual case of static nonlinearity to cover dynamic nonlinearity. The test capitalizes on the same set of data generated when estimating the best linear approximation of the system. The identification of the system parameters through the best linear approximation is also analyzed in terms of the sensitivity and convergence properties. The effectiveness of the approach is illustrated through simulations. The results show that the proposed approach combining the structure identification and parameter estimation outperforms an existing method.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Identification
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL500-777 Aeronautics. Aeronautical engineering
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Suzilawati Abu Samah
Date Deposited: 13 Jan 2022 03:05
Last Modified: 13 Jan 2022 03:05


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