Research Article
On the Identification of Coupled Pitch and Heave Motions Using Opposition-Based Particle Swarm Optimization
Table 5
Parameter identification for pitch and heave motions for level 5 sea condition, ship speed 18 kn and course angle 90°.
| | Parameters | Theoretical values | PSO-w | OPSO | | Identification value | Relative error | Identification value | Relative error |
| | | | 25.64% | | 2.82% | | | | 4.89% | | 6.01% | | | | −84.86% | | 9.39% | | | | 43.71% | | 1.65% | | | | 11.19% | | 2.25% | | | | 43.43% | | 7.07% | | | | 25.14% | | 1.11% | | | | 17.50% | | −15.24% |
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