Application of DDS Based on DSP in Rubidium Atomic Frequency Standard

摘要：

The present status and development of rubidium atom frequency standard are introduced. The main limitation of adopting the phase lock frequency modulation was discussed. On the foundation of analyzing the DDS algorithm, the plan of direct digital frequency synthesis based on DSP was given. Through adjusting the parameter of DDS online, we can obtain the output frequency of the high resolution in the experiment, and aim the excitation transition frequency of rubidium frequency standard at the center spectrum frequency of quantum system automatically. Simultaneously, two output frequencies of DDS havent the phase difference. Thus the cost of the rubidium atomic frequency standard is not only reduced, but also its stability is greatly improved.

关键词： Rubidium atomic frequency standard stability direct digital frequency synthesis CORDIC algorithm

作者: Wang Yutai Li Nianqiang Zhang Lu

作者单位: School of Information science and Engineering,Jinan University,Jinan 250022,China

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）