Parametric Identification of Input-delay Systems with Unknown Time Delay

Author

Aldin, Najafi Majd ; Marzieh, Kamali ; Javad, Askari

Author_Institution

Isfahan Univ. of Technol., Isfahan

fYear

2007

Firstpage

246

Lastpage

250

Abstract

In this paper, a method is presented for on-line identification of systems with unknown time delay. This method is based on two parametric models of system that one of them is defined for transfer function parameters estimation and the other one is defined for delay value estimation. Gradient algorithm is used for estimating transfer function parameters and a new algorithm is suggested for estimating delay value. The effectiveness of this method has been demonstrated through simulation. Also this method has been used for identifying laboratory CNC system parameters. The delay in this system is due to signal transmission between the CNC and the network.

Keywords

computerised numerical control; delay systems; estimation theory; gradient methods; parameter estimation; transfer functions; CNC system parameters; delay value estimation; gradient algorithm; input-delay systems; online identification; parameters estimation; parametric identification; signal transmission; transfer function; unknown time delay; Computer numerical control; Control systems; Delay effects; Delay estimation; Delay systems; Differential equations; Laboratories; Parameter estimation; Parametric statistics; Transfer functions; Gradient algorithm; Identification; Time delay systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference, 2007. CCC 2007. Chinese

Conference_Location

Hunan

Print_ISBN

978-7-81124-055-9

Electronic_ISBN

978-7-900719-22-5

Type

conf

DOI

10.1109/CHICC.2006.4347216

Filename

4347216