Zijing ZHAO, Yanfu LIU, Hongchao ZHAO, Lei FAN, Yong YAN, Zizheng LI. Pointing stability control method for super stable satellite based on composite axis control[J]. Optics and Precision Engineering, 2023, 31(23): 3438
- Optics and Precision Engineering
- Vol. 31, Issue 23, 3438 (2023)
Fig. 1. Principle diagram of single-axis attitude maneuvering of drag-free satellite
Fig. 2. Calculation results of additional interference moment
Fig. 3. Factors affecting attitude adjustment
Fig. 4. Simulation results under different conditions
Fig. 5. Monte Carlo simulation results
Fig. 6. Displacement-output curve of piezoelectric ceramic
Fig. 7. Control block diagram of velocity-attitude double-loop
Fig. 8. Mass velocity and satellite angle before and after nonlinear compensation
Fig. 9. Framework of compound-axis control system
Fig. 10. Residual attitude error after tuning
Fig. 11. Variation of stability error with bandwidth of auxiliary axis
Fig. 12. Residual error of auxiliary axis at 0.485 6 Hz
Fig. 13. Angle and angular velocity response of main axis
Fig. 14. Angle and angular velocity response of auxiliary axis
Fig. 15. Error amplitude spectral density of main and auxiliary axes
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Table 1. Parameters of additional disturbing torque
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Table 2. Parameters of piezo actuator P-225.20
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Table 3. Simulation parameters of drag-free satellite
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Table 4. Root mean square of satellite attitude errors
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