A method for identifying continuous delayed systems using rectangular-pulse testing

Shyh-Hong Hwang, Yu Chang Huang

Research output: Contribution to journalConference articlepeer-review

Abstract

An identification method is presented to deal with practical identification difficulties often encountered in plant testing, such as unsteady initial states and unknown load disturbances. A linear regression equation for step testing is first derived via integrating the differential system equation multiple times. A rectangular-pulse input is then considered as a combination of two step inputs. Based on the pulse response, the so-called two-stage least-squares algorithm is developed to overcome those identification difficulties and yield accurate estimates of the model parameters in a sequential manner. The method provides a convenient way to estimate the delay along with other model parameters. Furthermore, it is robust with respect to noise and model structure mismatch.

Original languageEnglish
Article number412-116
Pages (from-to)79-84
Number of pages6
JournalProceedings of the IASTED International Conference on Modelling, Identification and Control
Volume23
Publication statusPublished - 2004 Dec 1
EventProceedings of the 23rd IASTED International Conference on Modelling, Identification, and Control - Grindelwald, Switzerland
Duration: 2004 Feb 232004 Feb 25

All Science Journal Classification (ASJC) codes

  • Software
  • Modelling and Simulation
  • Computer Science Applications

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