高精度背景可控星图模拟器设计

为了实现星敏感器的地面标定和精度测试，研制一套具有可变星图背景的高精度星图模拟器，要求该系统的单星位置精度优于10″。采用高精度静态目标标准源作为星图模拟器的核心器件，配合一种亮度可控照明系统，实现星点和背景的同时模拟，并设计准直光学系统，使模拟星图与背景成平行光出射，在星敏感器出瞳处产生星图，完成背景可控、星点位置精度高的星图模拟。最后，提出提高星点位置模拟精度的方法，并利用经纬仪实测星点位置精度，配合照度计测试背景亮度。从实验结果可知，该模拟器的星图模拟精度优于10″，背景亮度可实现26倍调整，可用于高精度星敏感器的地面标定和精度测试。

Abstract

In order to meet the star sensor ground calibration and testing, a set of high-precision variable star chart background star map simulator was designed, the precision angular distance between the star of this system was required better than 10". Static targets with high precision was made as the standard source core device of star map simulator, matching with a brightness controlled lighting system to fulfill star point and background simulation in the same time, designing collimating optical system that males parallel light outgoing analog star chart and background, a star map was displayed at the pupil of star sensor, to achieve background controllable and high accuracy star chart position simulation. Finally, a method to improve the accuracy of the simulation star point was brought out, star point position accuracy was measured by using theodolite matching with the brightness tested of the background by light meter test. The experiments results show that, the star map simulation accuracy of the simulator is better than 10", can achieve the background brightness adjustment 26 times, and be used for high-precision star sensor ground calibration and accuracy testing.

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孙高飞, 张国玉, 刘石, 王琪, 高玉军, 王凌云, 王浩君. 高精度背景可控星图模拟器设计[J]. 红外与激光工程, 2015, 44(7): 2195. Sun Gaofei, Zhang Guoyu, Liu Shi, Wang Qi, Gao Yujun, Wang Lingyun, Wang Haojun. Design of high-precision variable star chart background star map simulator[J]. Infrared and Laser Engineering, 2015, 44(7): 2195.

高精度背景可控星图模拟器设计

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