Xin TONG, Youyang QU, Jiebing LIU, Xinyu SONG, Lu DAI. Sunlight avoidance planning method for data transmission with phased array of low-earth orbit optical satellites[J]. Optics and Precision Engineering, 2024, 32(6): 822
- Optics and Precision Engineering
- Vol. 32, Issue 6, 822 (2024)
Fig. 1. Relationship between satellite coordinate system， camera coordinate system， and phased array coordi- nate system
Fig. 2. Direction of phased array beamforming
Fig. 3. Satellite data transmission using staring attitude
Fig. 4. Process flowchart of sunlight attitude avoidance met-hod for phased array data transmission
Fig. 5. Rotation process of sunlight avoidance vector
Fig. 6. Relationship between satellites， ground stations， and the desired attitude
Fig. 7. Attitude angle under the orbital coordinate system
Fig. 8. Angular velocity in orbital coordinate system
Fig. 9. Angle between camera and sunlight
Fig. 10. Off-axis Angle and azimuth Angle of phased array
Fig. 11. Angle between camera and sunlight in December 2022
Fig. 12. Angle between the camera and the sunlight during the data transmission
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Table 1. Numerical simulation condition
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