Research Article
On the Identification of Coupled Pitch and Heave Motions Using Opposition-Based Particle Swarm Optimization
Table 6
Parameter identification of pitch and heave motions for level 5 sea condition, ship speed 18 kn and course angle 135°.
| | Parameters | Theoretical values | PSO-w | OPSO | | Identification value | Relative error | Identification value | Relative error |
| | | | −4.34% | | 1.34% | | | | 3.15% | | 4.31% | | | | −6.93% | | 2.05% | | | | 8.10% | | 0.35% | | | | −1.70% | | 1.34% | | | | −0.90% | | 0.64% | | | | 0.82% | | 3.85% | | | | 20.13% | | 0.64% |
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