Fig. 1. Schematic diagram of one-to-four networking of space laser communication

Fig. 2. Schematic diagram of main optical transceiver and its optical system. (a) Outline drawing of main optical transceiver; (b) schematic diagram of optical system (single path)

Fig. 3. Layout diagram of one-to-four networking of space laser communication

Fig. 4. Dynamic modeling analysis. (a) Schematic diagram of one-to-one experiment of space laser communication; (b) diagram of angular velocity and angular acceleration change

Fig. 5. Amplitude-frequency characteristic curve of speed loop

Fig. 6. Amplitude-frequency characteristic curve of position loop

Fig. 7. Block diagram of tracking system model

Fig. 8. Influence diagram of speed lag compensation parameters. (a) Tracking error; (b) phase margin; (c) overshoot

Fig. 9. Influence diagram of acceleration lag compensation parameters. (a) Tracking error; (b) phase margin; (c) overshoot

Fig. 10. Equivalent sine steady state tracking error curve

Fig. 11. Equivalent motion attitude tracking error curve

Fig. 12. Equivalent disturbance tracking error curve

Fig. 13. Coarse tracking experiment of main optical transceiver in networking

Fig. 14. Tracking error curve of disturbance experimental test

Fig. 15. Tracking error curve of motion attitude experimental test