Research Article

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

Figure 2

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 135°.
784049.fig.002a
(a) Pitch
784049.fig.002b
(b) Heave