Research Article
On the Identification of Coupled Pitch and Heave Motions Using Opposition-Based Particle Swarm Optimization
Table 2
Parameter identification of pitch and heave motions for level 4 sea condition, ship speed 18 kn and course angle 90°.
| | Parameters | Theoretical values | PSO-w | OPSO | | Identification value | Relative error | Identification value | Relative error |
| | | | 17.42% | | 1.19% | | | | 15.66% | | 0.83% | | | | 14.82% | | 3.66% | | | | 27.72% | | 5.39% | | | | 9.05% | | 4.27% | | | | 41.31% | | 0.26% | | | | 20.17% | | 1.39% | | | | 30.91% | | 7.70% |
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