Title
A direct maximum likelihood optimization approach to identification of LPV time-delay systems.
Abstract
This paper is concerned with parameter estimation for a single-input single-output (SISO) linear parameter varying (LPV) system in an input–output setting with output-error (OE) time-delay model structure. Since the practical industrial processes are inherently nonlinear and are often operated over several working points with transition dynamic periods between different working points, the multiple-model LPV model is considered in this paper. A global maximization method is firstly used to estimate an autoregressive with exogenous input (ARX) time-delay model for each local process in a noniterative way. Then the Maximum Likelihood (ML) estimator is developed to identify a global LPV OE model based on the local process data and the transition data with the parameters initialized based on the local parameter estimates for the ARX time-delay models. One numerical example and two practical simulation examples are presented to demonstrate the effectiveness of the proposed method.
Year
DOI
Venue
2016
10.1016/j.jfranklin.2016.03.005
Journal of the Franklin Institute
Field
DocType
Volume
Autoregressive model,Local parameter,Mathematical optimization,Nonlinear system,Control theory,Maximum likelihood,Estimation theory,Maximization,Mathematics,Estimator
Journal
353
Issue
ISSN
Citations 
8
0016-0032
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
xianqiang yang15910.79
Biao Huang2394.60
Huijun Gao38923416.93