摘要
针对星敏感器地面标定设备的要求,设计了一种基于数字化控制的高精度、全光谱静态星等模拟器.系统采用无畸变、高成像质量的准直光学系统模拟"无穷远"的星光;控制采用脉宽调制(PWM)技术,设计驱动电路的硬件和软件.在暗室条件下测试验证星模拟器,结果表明:该星模拟器实现了0,0.5,1,…,6.5,7等15个星等挡位的联合调节与单独调节功能,模拟精度为±0.1~m,控制距离为10 m,控制误差不超过±0.1%.
According to the requirement of star sensor ground calibration equipment, this paper designed a high- precision and full-spectrum magnitude simulator based on digital control. The system adopted the collimation optical system with no distortion and high imaging quality to simulate the ＂infinity＂ starlight; based on pulse width modulation （PWM） technology, the hardware and software of the drive circuits were designed. Test the star simulator under darkroom condition, the results showed 15 magnitude gear （ 0,0. 5, 1, ..., 6. 5,7 ） can be combined regulation as well as separate regulation, simulation precision was ±0.1 m. Control distance was 10 m, control error was not exceed ±0.1%.
出处
《北华大学学报（自然科学版）》
CAS
2017年第3期417-420,共4页
Journal of Beihua University（Natural Science）
基金
吉林省科技发展计划项目(20150204046GX)
吉林市科技创新发展计划项目(20161208)
关键词
星模拟器
准直系统
数字化控制
星等
star simulator
collimation system
digital control
magnitude
