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基于FPGA的活性激光器数字电路控制系统的研究
Wangwang Hu1,2, Tao Shuai2, Yonghui Xie2
1School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China.
这项研究引入了活性质质子 (AHM) 的紧数字控制系统,增强了卫星导航的频率稳定性. 新系统显著减少了尺寸和重量,同时保持了高性能.
科学领域:
- 原子,分子和光学物理学
- 精确测量和计量学 精确测量和计量学
- 航空航天工程和技术
背景情况:
- 在诸如卫星导航之类的应用中,质子对于高精度计时至关重要.
- 活性质束 (AHM) 与被动质束 (PHM) 相比,具有更高的稳定性,但更大,更重.
- 减少AHM的尺寸和重量对于基于太空的应用是必不可少的.
研究的目的:
- 开发一个数字电路控制系统,用于活性激光器 (AHM),以减少体积和重量.
- 为了提高maser的控制电路的集成和灵活性.
- 提高用于太空应用的AHM的频率稳定性和可靠性.
主要方法:
- 设计了一个使用现场可编程网关阵列 (FPGA) 的数字控制系统.
- 实施了用于温度控制,信号检测,下转换和相锁定的数字技术.
- 引入了一种基于流的新调方法,以减轻环境频率波动.
- 通过烤箱控制的晶振荡器 (OCXO) 和空洞循环验证了系统的性能.
主要成果:
- 数字控制系统成功地满足了OCXO和空腔环的性能要求.
- 实现了2.6×10−13/1秒和1.4×10−15/10,000秒的显著频率稳定性.
- 取得的稳定性可与地面活性质质器相美.
结论:
- 开发的基于FPGA的数字控制系统可显著减少AHM的尺寸和重量.
- 这项技术为下一代太空导航,深空探索和空间站计时提供了实用的工程解决方案.
- 该系统的增强性能和小型化为更先进的太空任务铺平了道路.
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