Study on cloud model control for ship course-keeping system
Jian Gao · Journal of Jiangsu University of Science and Technology · 2008
The cloud model is a mathematical representation to fuzziness and randomness in linguistic concepts.It represents a qualitative concept with expected value Ex,entropy En and hyper entropy He,and integrates the fuzziness and randomness of a linguistic concept in a unified way.This model is a new method for transformation between qualitative and quantitative in the knowledge.This paper presents the cloud model of fuzzy sets,uncertainty reasoning of control rules based on cloud model,and one-dimension and two-dimension cloud model controller for ship course-keeping system.Simulation result shows that the cloud controller is simple and easy,directly perceived through the senses,and has strong robustness,better control performance,and good application.