Research Article
Design of a Fixed-Wing UAV Controller Combined Fuzzy Adaptive Method and Sliding Mode Control
Table 7
Flight altitude controller performance indexes.
| Methods | By the pitch angle | By the airspeed | Items | PID + SM | PID + FSM without f and | PID + FSM with f and | PID + SM | PID + FSM without f and | PID + FSM with f and |
| Steady time (s) | 0.19 | 0.17 | 0.15 | 0.57 | 0.61 | 0.59 | Steady error (m) | 9.8 | 0.2 | 6.1 | 2.5 | -2.2 | 0.1 |
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