光学精密工程2017，Vol.25Issue(7)：1705-1713,9.DOI:10.3788/OPE.20172507.1705
适用于立方体卫星的激光测距合作目标
Laser ranging cooperative target for CubeSat
摘要
Abstract
In order to provide inspection standards for GPS-based orbit determination data of CubSat and realize high-precision orbit measurement,a laser cooperation target which weights 108 g with a field of view of 360° and ranging accuracy in centimeter was designed by distributing three miniature laser reflectors with aperture of 1.0 cm at all surfaces of a standard CubSats with dimensions of 10 cm × 10 cm× 10 cm.According to the additional phase lead by dihedral angle error of the cube corner retroreflector,as well as surface-shape errors of the reflective and incident planes,distribution merits of the cube corner retroreflector in the far field was analyzed.Then,the effective area of the laser cooperation target was calculated based on the distribution mode of laser cooperative targets on the satellite.Furthermore,the returned photon number of the laser reflector on the CubSats with different orbital altitudes was estimated by the laser ranging equation,meanwhile the accuracy of laser ranging was calculated based on the mass-center correction model of the satellite.Finally,a ranging test of pico-satellite laser cooperation target was performed.It is verified that 1.0 cm miniature laser reflectors loaded on the satellite can reflect enough laser echo signals.The result indicates that the distribution mode can provide sufficient echo signals for CubSats running on 250-1 000 km orbit with centimeter-level accuracy within the laser ranging,which meets the requirements of CubSats for light mass,flexible distribution and high ranging accuracy.关键词
激光测距/立方体卫星/激光合作目标/有效反射面积/测距精度Key words
laser ranging/CubeSat/laser cooperative target/effective reflection area/range accuracy分类
天文与地球科学引用本文复制引用
罗青山,郭唐永,姚运生..适用于立方体卫星的激光测距合作目标[J].光学精密工程,2017,25(7):1705-1713,9.基金项目
国家自然科学基金资助项目(No.41274189) （No.41274189）
中国地震局地震研究所所长基金资助项目(No.IS201226038,No.IS201506210) （No.IS201226038,No.IS201506210）
