用于天文导航设备检测的星模拟装置  

Star simulator for testing celestial navigation equipment

作　　者：赵晨光[1] 谭久彬[1] 刘俭[1] 王宇航[1] 

机构地区：[1]哈尔滨工业大学超精密光电仪器工程研究所,黑龙江哈尔滨150001

出　　处：《光学精密工程》2010年第6期1326-1332,共7页Optics and Precision Engineering

基　　金：国家自然科学基金资助项目(No.60878028)

摘　　要：为实现对天文导航设备的实验室检测,设计了一种星模拟装置。对该装置所采用的准直光学系统、数字可调光源进行了研究,并提出了背景光模拟的技术要求。根据天文导航设备的主要技术要求给出星模拟装置的整体结构。介绍了消色差准直光学系统、数字可调光源和确定星点大小及位置的关键技术,并分析了背景光均匀性对星模拟效果的影响。最后,制作了星模拟装置,并进行了相关验证性实验。实验结果表明,该装置能模拟0～5等星,背景光均匀性为94.7%,系统焦距为1647mm,视场为28′,准直性优于±2″。该装置可以同时模拟星光和背景光变化,具有准直性好、背景光照度模拟范围宽等优点,能够满足天文导航设备的实验室检测要求。A star simulator using digital adjustable light sources and a collimating optical system is presented to realize a laboratory test of celestial navigation equipment in this paper,and the technical requirements of the background light simulation are proposed as well.Based on the technical requirements of celestial navigation equipment,the overall construction of the star simulator is presented.Then,the key techniques of digital adjustable light sources,achromatic collimating optical system and adjusting for the sizes and positions of the stars are introduced,and the effect of the uniformity of background light on the star simulation is analyzed.Finally,the star simulator is fabricated and the corresponding experiments are carried out for validating its properties.Experimental results indicate that the simulator can simulate the star magnitudes of 0-5 effectively,and can offer the uniformity of background light of 94.7% and collimation better than ±2″ in the system focus of 1 647 mm and the field of view of 28′.Furthermore,the designed simulator can simulate the changes of star lights and background lights at the same time.It is concluded that the designed star simulator can satisfy the test requirements of celestial navigation in a laboratory.

关 键 词：天文导航 星模拟 光学仿真 光源标定 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计] TH753[机械工程—仪器科学与技术]