Dechun ZHAO, Yansong SONG, Yang LIU, Yan DONG, Baishuo ZHANG. Sliding Mode Control of Tip-tilt Mirror Based on Disturbance Observer[J]. Acta Photonica Sinica, 2022, 51(6): 0601002
- Acta Photonica Sinica
- Vol. 51, Issue 6, 0601002 (2022)
Fig. 1. Block diagram of sliding mode control structure based on DOB
Fig. 2. Graph of the step signal response of c=4，k=3
Fig. 3. Graph of the sine response of c=4，k=3
Fig. 4. Graph of the step signal response of c=4，k=1
Fig. 5. Graph of the sine response of c=4，k=1
Fig. 6. Structure diagram of the tip-tilt mirror system
Fig. 7. Experimental device diagram
Fig. 8. Azimuth axis calibration curve of the tip-tilt mirror
Fig. 9. Pitch axis calibration curve of the tip-tilt mirror
Fig. 10. Azimuth axis correction error curve of the tip-tilt mirror
Fig. 11. Pitch axis correction error curve of the tip-tilt mirror
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Table 1. Control parameter table
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Table 2. Control parameter table
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Table 3. System parameters of the tip-tilt mirror
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Table 4. Control parameters of the tip-tilt mirror
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