针对星敏感器系统的地面测试要求，设计一种大视场高精度静态星模拟器。根据静态星模拟器的工作原理，确定模拟器具有出瞳外置的准直光学系统。结合技术指标，在Zemax 平台上优化设计了具有良好成像质量的光学系统，设计结果为：系统焦距99.988 mm，视场达到Φ39°, 畸变小于0.1%，实现高精度静态星模拟器精确模拟星点。提出了依照光学系统像差确定星点板上各星点刻划位置的方法，避免多次刻划星点板的过程。对设计的系统进行测试，从测试结果看：设计的大视场星模拟器的成像精度达到15″，可以满足对星敏感器地面标定的使用需要。

In order to complete the calibration work of the star sensor, a high- precision collimating optical system with large field of view is designed. According to the static star simulator′ s working principle about cohesion between exit pupil of star simulator and entrance pupil of star sensor, the design principle and parameters of optical system is determined. The design results show that the field of view is Φ39°, distortion is less than 0.1% . A method of making star point board in accordance with aberrations of the optical system is put forward, to avoid process of repeatedly engraving star point board. Finally, the design of the system is tested. According to the testing results: simulated accuracy of the whole system reaches 15″ , the data can meet the using requirement of high accuracy with large field static star simulator.