Bincai CAO, Jianrong WANG, Yan HU, Yuan LÜ, Xiuce YANG, Xueliang LU. On-orbit geometric calibration and preliminary accuracy verification of GaoFen-14 （GF-14） laser altimetry system[J]. Optics and Precision Engineering, 2023, 31(11): 1631
- Optics and Precision Engineering
- Vol. 31, Issue 11, 1631 (2023)
Fig. 1. Schematic diagram of satellite laser ranging （Linear detection systems）
Fig. 2. GF-14 laser ranging system
Fig. 3. Beam geometry structure of on-orbit GF-14 laser ranging system
Fig. 4. Strict geometry model of laser altimetry
Fig. 5. Inner Mongolia laser calibration field location
Fig. 6. Gaussian fitting of laser spot center
Fig. 7. Ground detector data acquision
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Table 1. Basic parameters of GF-14 laser ranging system
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Table 2. Laser footprint predition and captured number of footprints
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Table 3. Internal accuracy of laser calibration
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Table 4. Laser calibration accuracy （point 2 on June 7 as control point， and the rest as check points）
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Table 5. Laser calibration accuracy （half of points as control points and the other half as check points）
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Table 6. Parameters of different calibration strategies
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