
Figure 1:
Block diagram of various stages of project.

Figure 2:
UNSW Autonomous Underwater Vehicle platform (Hassanein et al., 2011).

Figure 3:
Forward thruster with electrical motor driver.

Figure 4:
Submersible bilge pump with the motor driver.

Figure 5:
ADIS16367 unit.

Figure 6:
SPI interface for IMU.

Figure 7:
Burst read sequence (ADIS16367 Data Sheet).

Figure 8:
Wiring from pressure sensor to compass.

Figure 9:
Depth measurement accuracy from water pressure sensor.

Figure 10:
PC104 computer system stack.
Table 1.
Specifications of AUV model.
| Parameter | Calculated value | Unit | Parameter | Calculated value | Unit |
|---|---|---|---|---|---|
| Mass of the AUV | 10.4102 | Kg | CG (original) | [‒10.7498‒3.49512428.206] | mm |
| Payload capacity | 21.1408 | Kg | Total length (L) | 1.064 | m |
| Mass of AUV + Payload | 31.551 | Kg | Diameter (d) | 0.250 | m |
| Ix | 0.6384 | Kg.m2 | Speed | 1 | m/s |
| Iy | 6.4110 | Kg.m2 | 1000 | Kg/m3 | |
| Iz | 6.4110 | Kg.m2 | BC | [0 0 0] | m |
| CG | [0 0 0] | m | BC(original) | [0 0 21.306] | mm |

Figure 11:
Complete hardware diagram of AUV.

Figure 12:
Complete AUV hardware.

Figure 13:
Buoyancy adjustment of the AUV.

Figure 14:
Body-fixed and earth-fixed coordinate system (Hassanein et al., 2013).
Table 2.
Hydrodynamic coefficient of UNSW Canberra AUV model.
| Parameter | Calculated value | Unit | Parameter | Calculated value | Unit |
|---|---|---|---|---|---|
| ‒7.365 | Kg/m | ‒2.12 | Kg/sec | ||
| ‒0.737 | Kg/m | ‒0.31 | Kg/sec | ||
| ‒0.737 | Kg/m | ‒0.31 | Kg/sec | ||
| ‒1.065 | Kg.m/rad | ‒0.51 | Kg.m/sec | ||
| ‒1.065 | Kg.m/rad | ‒0.51 | Kg.m/sec | ||
| ‒112.2 | Kg/m | ‒62.45 | Kg/sec | ||
| 0.250 | Kg.m/rad | 0.12 | Kg.m/sec | ||
| ‒112.2 | Kg/m | ‒62.45 | Kg/sec | ||
| ‒0.250 | Kg.m/rad | 0.12 | Kg.m/sec | ||
| ‒0.5975 | Kg.m2/rad2 | ‒0.3125 | Kg.m2/sec | ||
| 2.244 | Kg.m/rad | 1.2 | Kg.m/sec | ||
| ‒119.5 | Kg.m2/rad2 | ‒59.75 | Kg.m2/sec | ||
| ‒2.244 | Kg.m/rad | 1.2 | Kg.m/sec | ||
| ‒59.75 | Kg.m2/rad2 | ‒31.25 | Kg.m2/sec | ||
| ‒1.17 | Kg | 0 | Kg.m/rad | ||
| ‒34.834 | Kg | ‒1.042 | Kg.m/rad | ||
| 1.042 | Kg.m/rad | ‒2.659 | Kg.m/rad | ||
| ‒34.834 | Kg | ‒1.042 | Kg.m/rad | ||
| ‒1.042 | Kg.m/rad | ‒2.659 | Kg.m/rad |

Figure 15:
Simulink block diagram.

Figure 16:
Surge input Force.

Figure 17:
Pitch and yaw input Force.

Figure 18:
Surge input responses.

Figure 19:
Pitch input response in AUV translational and orientational movement.

Figure 20:
Pitch input response in AUV velocities.

Figure 21:
Yaw input response in translational and orientational movement.

Figure 22:
Yaw input response in AUV velocities.

Figure 23:
Hardware In loop (HIL) simulation.

Figure 24:
UNSW Canberra AUV during experimental teat data collection.

Figure 25:
1st set of AUV control based fuzzy experimental results: coupled dynamics.

Figure 26:
2nd set of AUV control based HNFN experimental results: coupled dynamics.