摘要
简单介绍了被动型氢原子钟的组成及原理,阐述了基于数字调频和数字伺服的电子电路在被动型氢原子钟上的应用(目的是改善钟性能),并给出了设计的最终测试结果及其分析,数据表明该系统的稳定度比原有系统有很大提高。为了进一步改善钟性能,又对伺服系统提出了以数字信号处理器(DSP)和现场可编程门阵列(FPGA)为主体的新的方案。
The principle and composition of the passive hydrogen maser is introduced briefly, and an application of digital frequency modulation and digital servo to the passive hydrogen maser for improving the performance of the clock is expounded. The final test and analysis of the system are presented and the data indicate that the stability of the present system is much better than that of the original one. In order to further improve the performance, a new scheme based on DSP （digital signal processor） and FPGA （field programmable gate array） is put forward for the servo system in this paper.
出处
《时间频率学报》
CSCD
2007年第1期20-28,共9页
Journal of Time and Frequency
关键词
被动型小氢钟
数字调频
数字伺服系统
miniature passive hydrogen maser
digital frequency modulation
digital servo system
