Research Article

On the Identification of Coupled Pitch and Heave Motions Using Opposition-Based Particle Swarm Optimization

Figure 3

Pitch and heave observed value. Model identified by PSO-w and model identified by OPSO for level 4 sea condition, ship speed 18 kn and course angle 180°.
784049.fig.003a
(a) Pitch
784049.fig.003b
(b) Heave