Abstract:

Based on the nonlinear characteristic of the ship, it is difficult to obtain accurate physical parameters of the ship physical model. Therefore, the statistical modeling method and RBF-ARX model is used to model the ship course-keeping control process. In this paper, the RBF-ARX model, the ARX model and the long-term predictive output of the physical model are compared, and the effectiveness and superiority of the RBF-ARX model in the ship course-keeping control system modeling are verified.

Key words:

Ship course-keeping system, nonlinear system, RBF-ARX model

摘要： 以海洋船舶为被控对象，针对系统的非线性特性，为克服船舶物理模型精确物理参数不易获得等问题，故用统计建模的方法，采用RBF-ARX模型对船舶的航向保持非线性控制过程进行建模。并比较了船舶RBF-ARX模型、ARX模型和物理模型的长期预测输出，验证了RBF-ARX模型在对船舶航向保持控制系统建模中的有效性和优越性。

关键词: 船舶航向保持系统, 非线性系统, RBF-ARX模型