COMBINED SAPPHIRE OSCILLATOR HYDROGEN MASER FREQUENCY STANDARD

被引:1
作者
COSTA, ME [1 ]
HE, JW [1 ]
MANN, AS [1 ]
LUITEN, AN [1 ]
BLAIR, DG [1 ]
机构
[1] CHINESE ACAD SCI,SHANGHAI OBSERV,SHANGHAI 200030,PEOPLES R CHINA
关键词
OSCILLATORS; MASERS; FREQUENCY MEASUREMENT; MEASUREMENT STANDARDS;
D O I
10.1049/el:19941457
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An attempt has been made to create a superior frequency standard by combining the excellent short term frequency stability of a sapphire oscillator with the long-term Stability of a hydrogen maser. The combined frequency standard closely follows the hydrogen maser in the long term and has good stability at short integration times, although it falls short of the actual sapphire oscillator stability due to phase noise in the hydrogen maser output signal.
引用
收藏
页码:2119 / 2120
页数:2
相关论文
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