Table 1.
Summarized results of computer simulation at different noise levels. (N denotes that the returned result is illogical, and RSD denotes the relative standard deviation.)
| Parameter | Actual | Estimated (mean±RSD) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 0% noise | 2% noise | 5% noise | 10% noise | ||||||
| FCM+fitting | NLS | FCM+fitting | NLS | FCM+fitting | NLS | FCM+fitting | NLS | ||
| 1.286 | 1.286 | 1.280 | 1.286±2.00% | 1.278±3.10% | 1.287±4.88% | 1.156±94.7% | 1.284±9.58% | N | |
| 7.000 | 7.000 | 8.910 | 7.002±1.40% | 8.807±20.1% | 7.006±3.12% | 9.511±40.4% | 6.976±6.57% | N | |
| 1.429 | 1.429 | 1.440 | 1.426±2.80% | 1.436±3.34% | 1.427±7.26% | 1.432±8.81% | 1.430±13.2% | 1.41±17.7% | |
| 11.143 | 11.143 | N | 11.148±1.4% | N | 11.123±3.44% | N | 11.201±6.8% | N | |
| ve,R | 1.786 | 1.786 | 1.7761 | 1.779±0.71% | 1.777±1.17% | 1.751±1.14% | 1.692±60.0% | 1.713±1.33% | N |
| 2.857 | 2.857 | 4.085 | 2.857±0.14% | 4.010±30.4% | 2.858±0.32% | 4.481±52.1% | 2.866±0.63% | N | |
| 3.571 | 3.571 | 3.564 | 3.541±2% | 3.566±2.36% | 3.415±4.10% | 3.605±6.84% | 3.138±4.95% | 4.021±128% | |
| 2.143 | 2.143 | N | 2.143±0.06% | N | 2.144±0.15% | N | 2.146±0.28% | N | |