Chunjie Dai, Aiming Zhou, Yi Yang, Dongdong Zhang. Improved Sun Glint Computational Model Based on WGS-84 Ellipsoid and Simulation Analysis[J]. Laser & Optoelectronics Progress, 2023, 60(20): 2001001
- Laser & Optoelectronics Progress
- Vol. 60, Issue 20, 2001001 (2023)
Fig. 1. Sun glint observation geometry based on an ideal sphere model
Fig. 2. Sun glint observation geometry based on the WGS-84 ellipsoid model
Fig. 3. Flow chart of the sun glint position algorithm based on the WGS-84 model
Fig. 4. Flow chart of improved sun glint location algorithm considering coplanar conditions
Fig. 5. Pointing mirror coordinate system. (a) Along the Y axis; (b) along the X axis
Fig. 6. Sun glint position distance error of the ideal sphere model. (a) Spring equinox; (b) summer solstice; (c) winter solstice
Fig. 7. Sun glint position distance error of the WGS-84 ellipsoid model before improvement. (a) Spring equinox; (b) summer solstice; (c) winter solstice
Fig. 8. Sun glint position distance error of the WGS-84 ellipsoid model after improvement. (a) Spring equinox; (b) summer solstice; (c) winter solstice
Fig. 9. Two-dimensional pointing angle error before and after algorithm improvement. (a) Before improvement; (b) after improvement
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