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Parameter Identification and Intersample Output Estimation for Dual-Rate Systems

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3 Author(s)
Feng Ding ; Control Sci. & Eng. Res. Center, Jiangnan Univ., Wuxi ; Liu, P.X. ; Huizhong Yang

In this paper, we derive a mathematical model for dual-rate systems and present a stochastic gradient identification algorithm to estimate the model parameters and an output estimation algorithm to compute the intersample outputs based on the dual-rate input-output data directly. Moreover, we investigate convergence properties of the parameter and intersample estimation, and we test the proposed algorithms with example systems, including an experimental water-level system.

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Systems, Man and Cybernetics, Part A: Systems and Humans, IEEE Transactions on  (Volume:38 ,  Issue: 4 )