Yu Wu, Xiaoxiang Long, Jian Yang, Qijin Han, Qingpeng Li, Song Li. Variation Law Analysis and Application of GaoFen-7 Laser Pointing[J]. Acta Optica Sinica, 2021, 41(23): 2328003
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- Acta Optica Sinica
- Vol. 41, Issue 23, 2328003 (2021)
Fig. 1. LFC synchronous mode image. (a) Light spot image in bare mountain area; (b) light spot image in forest area
Fig. 2. Grayscale histogram of spot ROI region under different noise conditions. (a) Low noise; (b) medium noise; (c) high noise
Fig. 3. X-direction and Y-direction statistical image of the six-track quality spot center
Fig. 4. X-direction contrast of orbit 2107 spot center. (a) All spot X position on orbit 2107; (b) all quality spot X position on orbit 2107
Fig. 5. Typical LFC image. (a) Image 339; (b) image 610; (c) image 621
Fig. 6. Fitting line in the X direction of orbit 2107 spot center
Fig. 7. X-direction contrast of orbit 2107 in optical axis surveillance camera
Fig. 8. X-direction spot center of orbit 4871 and 4947
Fig. 9. Transit areas of orbit 4871 and orbit 4947
Fig. 10. All spot centers on orbit 4871 in X direction
Fig. 11. Emits laser energy changes of orbit 4871
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Table 1. Features of four typical area LFC images
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Table 2. Comparison table of typical spot X direction position correction
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Table 3. X-direction change rule of the spot center in the six-track
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