小型星模拟器的研制方法和研制技术

【作者】 张文明；

【导师】 严高师； 岳永坚；

【作者基本信息】 电子科技大学 ， 光学工程， 2003， 硕士

【摘要】 本文介绍的小型星模拟器是在地面上模拟天空,以便对星敏感器的星图识别算法进行功能测试的检测设备,可实时动态地给出模拟星图。论文主要根据小型星模拟器的工程使用实际需要,结合用户星敏感器的技术指标要求,提出了采用高分辨率、超小型P13XM015型TFT-LCD液晶光阀器件作为星图显示的核心元件,从工程应用的角度阐明了小型星模拟器整个系统的研制方法和研制技术,并对影响精度的各种因素进行了理论分析。本文详述了整个系统的工作原理及设计、制造、加工、调试和检测工作,对光学系统准直物镜、模拟星库的编制、坐标转换、位置解算、星点生成的位置精度、系统控制软件等关键单元技术进行了重点介绍,并对下一代星模拟器研制的技术特点及难点进行了分析。本论文还对小型星模拟器的两个重要技术指标——星间角距精度和星等的检测方法进行了深入的研究,从工程上解决了对高精度星模拟器标定和测试的难题。更多还原

【Abstract】 The miniature star simulator introduced in the paper is a testing equipment simulating the sky on the ground, in this way the functional testing for star map recognition algorithm of a star sensor can be carried out and the simulated star map can be given at real-time. Based on the practical demands in miniature star simulator project and combining with the technical specifications of star sensor for user, the paper proposes to use subminiature high-resolution Model P13XM015 TFT-LCD liquid crystal light valve devices as the core elements for displaying star map and describes development methods and development technologies for the whole system of the miniature star simulator from the view of project application. An analysis for various factors affecting measuring accuracy is carried out in theory.The operating principle, design, manufacture, machining, calibration and testing of the whole system are described in detail in the paper. The key unit techniques such as collimating objective of the optical system, establishment of the simulation star database, coordinate conversion, position calculation, position accuracy produced by star point and system control software are emphatically introduced. The technical properties and difficulties for developing the next generation of star simulator are analyzed. The testing methods for two important technical specifications--angular distance accuracy between stars and magnitude of the miniature star simulator are further studied in the paper, thus the difficult problems such as calibration and testing of the high-accuracy star simulator are solved from the engineering.更多还原