通过扩展编程模拟星敏感器光学系统成像方法的研究

星图是星敏感器技术研究中不可或缺的重要数据，利用计算机进行星图模拟成为一种获取星图的捷径。提出一种通过扩展编程，模拟星敏感器光学系统成像过程，获取星图的方法，建立星图模拟系统。首先，在分析光学系统成像模拟基本原理的基础上，讨论利用软件接口，通过扩展编程实现模拟成像的必要性。然后，详细介绍成像模拟、增加噪声和伪星、存储和输出星图等步骤的实现方法，以及扩展编程方法的具体运用。最后给出星图模拟系统的设计结果，并针对给定的光学系统，给出实例，验证模拟方法。结果表明模拟方法正确，操作简便，程序设计工作量少，星图模拟系统人机交互性强，功能多样，提供的数据丰富多样，对于促进星敏感器技术研究具有重要意义。

Study on the method of simulating optical system imaging for star sensors by extension programming

Star maps are the indispensable and important data in the research on star sensors. It is a short cut to perform star map simulation utilizing computers. A method was presented to simulate the procedure of optical system imaging for star sensors to obtain star maps by extension programming. A system to simulate star maps was established. Firstly, the necessity of extension programming to realize imaging simulation by taking advantage of the extension interference was discussed on the basis of analyzing the basic principle of simulating optical system imaging for star sensors. Then, the methods to simulate imaging, add false stars and noises to maps, store and output star maps were introduced. Complete applications of extension programming were also introduced. Finally, the design result of the system to simulate star maps was given out. Examples were also presented as for the given optical system. The simulation method was validated. It is proved that the simulation method is correct, and can be handled easily and simply. Programming workload is less. The simulation system has advantages of fine interface, versatile, and has the ability to offer rich and multiplex data. It is significant to promote the study of star sensor technologies.