Research Article
On the Identification of Coupled Pitch and Heave Motions Using Opposition-Based Particle Swarm Optimization
Table 7
Parameter identification of pitch and heave motions for level 5 sea condition, ship speed 18 kn and course angle 180°.
| | Parameters | Theoretical values | PSO-w | OPSO | | Identification value | Relative error | Identification value | Relative error |
| | | | −0.38% | | 0.37% | | | | 2.82% | | 2.97% | | | | 23.09% | | 4.74% | | | | 0.12% | | 0.66% | | | | −0.89% | | 2.30% | | | | −3.17% | | 1.70% | | | | −2.38% | | 1.69% | | | | 16.37% | | 11.62% |
|
|
