Acta Photonica Sinica, Volume. 47, Issue 1, 129004(2018)
Comparison and Verification of Satellite Optical Scattering Characteristics Based on Experimental Measurements and OCS Simulation
Photometric data of satellites are related to many factors, such as satellite attitude, material and observation angle. The simulation calculation is often unable to obtain these factors, so that the simulation results cannot be compared with the measured results. Aiming at the problem that simulation results cannot be verified by measurement, the photometric data of the satellite in Satellite Tool Kit motion scene are obtained by experimental measurement and simulation calculation. In laboratory measurement, not only the space optical environment is simulated, but also the parallel analysis of satellite model attitude and satellite attitude in Satellite Tool Kit can be realized, which ensure the measurement accuracy. In simulation calculation, the bidirectional reflectance distribution function model based on the bidirectional reflectance distribution function data of the common space target material is used, and the influence of the wrinkled surface is taken into account, which improves the accuracy of the simulation. In addition, a three-axis stable satellite motion scene with phase angle variation range of 38°-98° is designed, the orbital parameters of the satellite are: semi major axis a=7 716.14 km, eccentricity e=0.001, orbit inclination i=58°, argument of perihelion ω=36°, longitude of ascending node Ω=345°, mean anomaly M=231.1°. When compare the photometric data obtained by experiment and simulation, the results show that two trends are same and the correlation coefficient is 0.69.
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TIAN Qi-chen, LI Zhi, XU Can, LI Peng, LIU Cheng-hao, QI Yue. Comparison and Verification of Satellite Optical Scattering Characteristics Based on Experimental Measurements and OCS Simulation[J]. Acta Photonica Sinica, 2018, 47(1): 129004
Received: Aug. 7, 2017
Accepted: --
Published Online: Jan. 30, 2018
The Author Email: Qi-chen TIAN (15651756195@163.com)