Blar i NTNU Open på forfatter "Xu, Haitong"
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Parameters Estimation of Nonlinear Manoeuvring Model for Marine Surface Ship Based on PMM Tests
Xu, Haitong; Hassani, Vahid; Soares, C. Guedes (Chapter, 2018)A nonlinear manoeuvring mathematical model of marine surface ship model is briefly introduced. In order to obtain the hydrodynamic coefficients, system identification is used to estimate the parameters using Planar Motion ... -
Real-Time Parameter Estimation of a Nonlinear Vessel Steering Model Using a Support Vector Machine
Xu, Haitong; Hinostroza, M. A.; Hassani, Vahid; Guedes Soares, C (Journal article; Peer reviewed, 2019)The least-square support vector machine (LS-SVM) is used to estimate the dynamic parameters of a nonlinear marine vessel steering model in real-time. First, maneuvering tests are carried out based on a scaled free-running ... -
Real-Time Parameter Estimation of Nonlinear Vessel Steering Model Using Support Vector Machine
Xu, Haitong; Hassani, Vahid; Hinostroza, Miguel; Soares, C. Guedes (Chapter, 2018)The Least-square support vector machine (LS-SVM) is used to estimate the dynamic parameters of a nonlinear marine vessel steering model in real-time. First, manoeuvring tests are carried out based on a scaled free-running ... -
Truncated least square support vector machine for parameter estimation of a nonlinear manoeuvring model based on PMM tests
Xu, Haitong; Hassani, Vahid; Guedes-Soares, C. (Journal article; Peer reviewed, 2020)A new version of least square support vector machine (LS-SVM), the truncated LS-SVM, is proposed to estimate the nondimensionalized hydrodynamic coefficients. Truncated LS-SVM is shown to be an efficient and robust method ... -
Uncertainty analysis of the hydrodynamic coefficients estimation of a nonlinear manoeuvring model based on planar motion mechanism tests
Xu, Haitong; Hassani, Vahid; Guedes Soares, Carlos (Journal article; Peer reviewed, 2019)Uncertainty analysis of the identified hydrodynamic coefficients of a nonlinear manoeuvring model is presented in this paper. The classical parameter estimation method, Least Square, is briefly introduced, and the uncertainty ... -
Uniformly semiglobally exponential stability of vector field guidance law and autopilot for path-following
Xu, Haitong; Fossen, Thor I.; Guedes Soares, Carlos (Journal article, 2019)A uniform semiglobal exponential stability (USGES) proof for a time-varying vector field guidance law used for path-following control of vehicles is presented. A sliding mode control is introduced for heading autopilot ...