Title :
Systematic errors in cesium beam frequency standards introduced by digital control of the microwave excitation
Author :
Lee, W.D. ; Shirley, J.H. ; Walls, F.L. ; Drullinger, R.E.
Author_Institution :
NIST, Boulder, CO, USA
fDate :
31 May-2 Jun 1995
Abstract :
As part of the accuracy evaluation of the NIST-7 primary frequency standard, we have investigated potential sources of frequency offsets due to the electronic servo system. We present results from investigations of RF spectral purity and synthesizer switching transients
Keywords :
atomic clocks; caesium; digital control; frequency measurement; frequency synthesizers; measurement standards; power system transients; servomechanisms; Cs; NIST-7 primary frequency standard; RF spectral purity; accuracy evaluation; cesium beam frequency standards; digital control; electronic servo system; frequency offsets; microwave excitation; synthesizer switching transients; Amplitude modulation; Atomic beams; Atomic measurements; Blanking; Digital control; Error correction; Frequency conversion; Frequency synthesizers; Phase modulation; Servomechanisms;
Conference_Titel :
Frequency Control Symposium, 1995. 49th., Proceedings of the 1995 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-2500-1
DOI :
10.1109/FREQ.1995.483890
