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Underwater Robots - Gianluca Antonelli.pdf

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76 3. Dynamic Control of 6-DOF AUVs<br />

[deg] [deg]<br />

20<br />

10<br />

0<br />

−10<br />

−20<br />

0 50 100 150<br />

time [s]<br />

20<br />

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−20<br />

0 50 100 150<br />

time [s]<br />

[Nm] [Nm]<br />

10<br />

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0<br />

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−10<br />

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Fig. 3.17. Comparison of the control law A and the control law E in thesecond case<br />

study. Left column: Time history of measured roll angles (solid line) and the desired<br />

(dashed line); top, control law A , bottom, control law E . Right column: Time<br />

history of the restoring moment around x b (dashed), the corresponding integral<br />

action of the control law A (top, solid line) and the corresponding adaptive action<br />

of the control law E (bottom, solid line)

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