Title :
Phase noise in direct digital synthesizers [atomic clocks application]
Author :
Mattison, Edward M. ; Coyle, Laurence M.
Author_Institution :
Smithsonian Astrophys. Obs., Cambridge, MA, USA
Abstract :
A high-resolution direct digital synthesizer (DDS) intended for hydrogen masers is designed and constructed. Its phase noise is investigated by simulating its output signal and calculating its phase spectrum, and by measuring its phase spectrum directly. In addition its phase noise is compared with that of other synthesizers used in hydrogen masers
Keywords :
atomic clocks; crystal resonators; electron device noise; frequency control; frequency synthesizers; hydrogen; masers; time measurement; H; atomic clocks; crystal resonator; direct digital synthesizers; hydrogen masers; phase noise; phase spectrum; time measurement; Atomic clocks; Frequency synthesizers; Hydrogen; Instruments; Masers; Observatories; Phase noise; Signal resolution; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
Frequency Control Symposium, 1988., Proceedings of the 42nd Annual
Conference_Location :
Baltimore, MD
DOI :
10.1109/FREQ.1988.27624
