Audoin C, Candelier V, Dimarcq N. A Limit to the frequency stability of passive frequency standards due to an intermodulation effect[J]. IEEE T Instrum Meas, 1991, 40(2): 121－125.
[8]
Deng J Q, De Marchi A, Walls F L, et al. Frequency Stability of Cell-Based Passive Frequency Standards: Reducing the Effects of Local-Oscillator PM Noise//IEEE. Frequency Control Symposium, 1998[C]. Proceedings of the 1998 IEEE International, Pasadena, CA. 1998, 95－98.
[9]
Mileti G, Deng J Q, Walls F L, et al. Recent Progress in Laser-pumped Rubidium Gas Cell Frequency Standards//IEEE. Frequency Control Symposium, 1996[C]. Proceedings of the 1996 IEEE International, Honolulu, HI. 1996, 1066－1072.
