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Investigation of steering dynamics ship model identification based on PSO-LSSVR

  • Sheng Liu*
  • , Jia Song
  • , Bing Li
  • , Gaoyun Li
  • *Corresponding author for this work
  • Harbin Engineering University

Research output: Contribution to conferencePaperpeer-review

Abstract

According to the high-order nonlinearity and parameter uncertainty of the ship steering dynamics, it is difficult to establish the accurate mathematical model by using normal identification methods. To solve this problem, a new kind of Least Squares Support Vector Regression based on the Particle Swarm Optimization (PSO-LSSVR) is proposed. This method can select the parameters of LSSVR automatically without trial and error, thus ensure the accuracy of parameters optimization. Apply this method to the model identification of the ship steering dynamics, and compare the identification effect with the experimental reference data. The PSO-LSSVR is able to establish the system model effectively, the structure is simple and generalization ability is well.

Original languageEnglish
DOIs
StatePublished - 2008
Externally publishedYes
Event2008 2nd International Symposium on Systems and Control in Aerospace and Astronautics, ISSCAA 2008 - Shenzhen, China
Duration: 10 Dec 200812 Dec 2008

Conference

Conference2008 2nd International Symposium on Systems and Control in Aerospace and Astronautics, ISSCAA 2008
Country/TerritoryChina
CityShenzhen
Period10/12/0812/12/08

Keywords

  • Least squares support vector regression
  • Nonlinear system identification
  • Particle swarm optimization
  • Ship maneuvering

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