用频谱分析法评估被动式氢原子频标的短期稳定度(英文)

THE EVALUATION OF THE SHORT-TERM STABILITY OF A COMPACT PASSIVE HYDROGEN FREQUENCY STANDARD WITH SPECTRUM ANALYSES

该文通过向被动式氢原子频标微波腔馈入微波信号的方法,实验测到氢原子基态超精细0-0跃迁的频谱;对该频谱进行分析,得到了被动式氢原子频标的短期稳定度表达式:σ(2,τ)=2×10-12τ-0.5,这对于评价氢原子频标的量子部分对频率稳定度的贡献及改善量子部分结构有一定的参考价值。

The short-term stability of a compact passive Hydrogen frequency standard is analyzed with the spectrum analysis in the paper. The stability can be described by the expression:σ(2,τ)=2×10-12τ-0.5. The hyperfine frequency spectrum of hydrogen atomic transition is acquired by using scanning the frequency of an inducing atomic transition signal injected into the microwave cavity. It is helpful to separate the quantum section from the system and improve the structure of the quantum section.