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Maximum likelihood estimation method for dual-rate Hammerstein systems

  • Dong-Qing Wang
  • Zhen Zhang
  • Jin-Yun Yuan
Regular Papers Control Theory and Applications

Abstract

For a dual-rate sampled Hammerstein controlled autoregressive moving average (CARMA) system, this paper uses the polynomial transformation technology to obtain its dual-rate bilinear identification model which is suitable for the available dual-rate sampled-data, uses the maximum likelihood principle to construct a unified parameter vector of all parameters and an information vector formed by the derivative of the noise variable to the unified parameter vector, and directly identifies the parameters of the linear block and the nonlinear block for the dual-rate Hammerstein CARMA system. The unified parameter vector contains the minimum number of the unknown parameters, and the proposed maximum likelihood estimation algorithm has higher computational efficiency than the over-parameterization model based least squares algorithm.

Keywords

Dual-rate sampled system Hammerstein system maximum likelihood polynomial transformation system identification 

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Copyright information

© Institute of Control, Robotics and Systems and The Korean Institute of Electrical Engineers and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  1. 1.College of Automation and Electrical EngineeringQingdao UniversityQingdaoP. R. China

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