CAJ | 학술논문

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义。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义，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。
위료실현성민감기적지면표정화정도측시，연제일투구유가변성도배경적고정도성도모의기，요구해계통적단성위치정도우우10의。채용고정도정태목표표준원작위성도모의기적핵심기건，배합일충량도가공조명계통，실현성점화배경적동시모의，병설계준직광학계통，사모의성도여배경성평행광출사，재성민감기출동처산생성도，완성배경가공、성점위치정도고적성도모의。최후，제출제고성점위치모의정도적방법，병이용경위의실측성점위치정도，배합조도계측시배경량도。종실험결과가지，해모의기적성도모의정도우우10의，배경량도가실현26배조정，가용우고정도성민감기적지면표정화정도측시。
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 accuracywas 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.