一种机载天文导航星图模拟的实现方法  

One Method on Star Image Simulation of Airborne Astronomical Navigation

作　　者：赵明波[1] 刘雨[1] 陶征宇[2] 贺勇军[2] 

机构地区：[1]国防科学技术大学电子科学与技术学院,长沙410073 [2]空军装备研究院总体所,北京100076

出　　处：《光电子技术》2008年第3期184-188,192,共6页Optoelectronic Technology

摘　　要：星图模拟是研究机载天文导航的关键技术之一。通过分析近些年国内外天文导航技术研究方面的资料,结合机载条件下的实际运行环境、天文导航基本原理和成像的主要影响因素,改进了CCD星敏感器的光轴指向、视场范围和观测星的确定方法,对星体成像位置和灰度的确定方法及背景光和曝光时间对成像效果的影响进行了优化,并建立了相应的模型。最后运用Matlab编程生成了所需星图,为进一步研究机载天文导航技术打下了基础。Star image simulation is one of the key technologies in research of airborne astronomical navigation. Through analysis of the research progress on astronomical navigation in last decades, combined with practical running environment, basic principles of astronomical navigation and major influencing factors of imaging, the confirmation methods on the optical axis pointing, visual fields and observed stars of CCD star sensors, star imaging positions and gray scales and the impact of background light and exposure time on imaging effect were improved. And the corresponding models were established and the required star image was generated via Matlab, favoring the further study of airborne astronomical navigation technology.

关 键 词：机载天文导航 星图模拟 星敏感器 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]