摘要
为满足高精度光学导航敏感器地面标定要求,针对传统标定用目标标准源技术特点,给出了一种基于有机电致发光器件(OLED)光源与光纤光导技术相结合的高精度目标标准源设计方法。分析设计方案并给出了目标标准源的整体结构;同时为提高OLED与光纤耦合效率,详细设计了标准目标源的光纤光源耦合机构以及光纤入/出射板的结构;为满足5～10等星的精确控制,对光耦合机构的自聚焦透镜和星等输出模拟系统中的滤光片进行了详细设计,并对自聚焦透镜进行了参数优化。对目标标准源的主要参数星等和星点间距精度进行的理论分析和实际测试表明所设计目标标准源达到了高精度星敏感器标定需要。
In order to meet the demands of calibration on the ground for optical navigation sensor with high precision, a method is given to design precise star charts simulator based on the characteristics of conventional technique by combined the OLED light source with fiber-optic light guide technology. The general structure of star charts simulator is presented after the analysis of its design. The coupling efficiency between the OLED and fiber is improved by a rebuilding of the coupling structure between the optical fiber and the light source as well as the fiber holding plate. By optimizing the design of the self-focusing lens in coupling system and the detail design of filters in stellar magnitude simulation system, a precise control is achieved to 5 - 10 for the stars positional accuracy. It is found that the design for star charts simulator approaches the requirement for the calibration of precise optical navigation star sensor through the theoretical analysis and the measurements for the magnitude and the stars positional accuracy.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2012年第5期203-208,共6页
Acta Optica Sinica
关键词
光学器件
星敏感器
目标靶
光纤
星等
optical devices
star sensor
target
optical fiber
stellar magnitude
