ISSN:
1614-7456
Keywords:
Radial basis function neural networks
;
Orthogonal least squares algorithm
;
Nonlinear system modeling
;
Givens transformation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Computer Science
Notes:
Abstract Compared with other feed-forward neural networks, radial basis function neural networks (RBFNN) have many advantages which make them more suitable for nonlinear system modeling, and they have recently received considerable attention. In this paper, a RBFNN is employed to model strongly nonlinear systems. First, the problems of nonlinear system modeling are analyzed, and then the structure of the RBFNN as well as the training algorithm are improved to solve these problems. Finally, an industrial high-purity distillation column, which is a strongly nonlinear system, is successfully modeled with the improved RBFNN. Owing to the complexities of a nonlinear system, it is necessary to use a real-time model correction method to modify the parameters of the RBFNN model in real time. One efficient method is proposed in this paper. The idea is to employ the Givens transformation to modify the parameters of the RBFNN-based model.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02471145
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