Yanjun Li, Min Zhang, Yang Liu, Yan Dong. Improved Internal Model Control in Application of Airborne Laser Communication System[J]. Laser & Optoelectronics Progress, 2023, 60(1): 0106007
- Laser & Optoelectronics Progress
- Vol. 60, Issue 1, 0106007 (2023)
Fig. 1. Block diagram of turntable servo system
Fig. 2. Basic structure of internal model control
Fig. 3. Structure of two-degree-of-freedom internal model control
Fig. 4. Equivalent structure of two-degree-of-freedom internal model control
Fig. 5. Structure of improved internal model control
Fig. 6. Output response curve of two-degree-of-freedom internal model control
Fig. 7. System output response curve when object model is unchanged
Fig. 8. System output response curve when object model is changed
Fig. 9. Simulation model of servo system
Fig. 10. Miss distance error with 5°, 0.25 Hz disturbance
Fig. 11. Miss distance error with 5°, 0.5 Hz disturbance
Fig. 12. Parameter perturbation miss distance error
Fig. 13. Two-axis two-frame photoelectric stabilization experimental platform
Fig. 14. Improved internal mold control miss distance error
Fig. 15. Internal mold control miss distance error
Fig. 16. Improved internal mold control miss distance error
Fig. 17. Internal mold control miss distance error
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Table 1. Step response analysis
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Table 2. Tracking error analysis of two control methods under different experimental conditions
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Table 3. Tracking error analysis of two control methods under different disturbance conditions
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