Title :
Application of lock-in amplifier in the rubidium atomic frequency standard
Author :
Yong, WANG ; Wei, LÜ Shan ; Ming, FENG Ke
Author_Institution :
Sch. of Electron. Eng., Beijing Univ. of Aeronaut. & Astronaut., China
Abstract :
In this paper, a new method is present for solving the problem of servo in Rb frequency standard by decreasing the equivalent noise bandwidth. The SNR in the output effect is enhanced and the long term stability of rubidium frequency standard is improved too.
Keywords :
circuit stability; frequency locked loops; frequency standards; injection locked amplifiers; rubidium; Rb; VCO servo; equivalent noise bandwidth; lock-in amplifier; long term stability; rubidium atomic frequency standard; Bandwidth; Frequency modulation; Low-noise amplifiers; Measurement standards; Microwave frequencies; Servomechanisms; Signal generators; Signal to noise ratio; Stability; Voltage-controlled oscillators;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1607101
