一种折射星图的模拟方法  

A Simulative Method of Refraction Star Map

作　　者：孙龙[1] 蔡佳楠[1] 

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230088

出　　处：《电子科技》2018年第3期21-23,31,共4页Electronic Science and Technology

基　　金：国家自然科学基金(61271114)

摘　　要：星光折射法是一种很有发展前途的导航方法。由于航天实验费用巨大,往往不可能进行实时的星空拍摄。为解决这个问题,文中提出了一种折射星的模拟方法,该方法结合大气折射模型和星光折射几何方程来计算星光折射角,进而得到折射星的赤经和赤纬。再利用星图模拟方法就可以模拟折射星在星敏感器像平面的位置,而且能够根据实际情况考虑星敏感器噪声、环境噪声的影响,仿真结果验证了本方法的正确行和实用性。The navigation method based on stellar refraction is a promising method. The real refraction star map is unpractical because of the costly experiment of spaceflight. To solve this problem,a simulative method of refraction star map is presented in this paper. In this method,the refraction angle of starlight is calculated by combining the atmospheric refraction model and the starlight refraction geometric equation,and the declination and declination can be achieved. Then we can get the refraction star's position on the image plane of stellar sensor by using the star map simulation method. The sensor noise and environment noise are considered in this method and which has been verified by the simulation results.

关 键 词：星光折射 星图模拟 折射星 导航 

分 类 号：TN967.1[电子电信—信号与信息处理] V249.3[电子电信—信息与通信工程]