Title :
Limit parameters of GPS disciplined quartz frequency sources
Author :
Weiss, Krzysztof ; Lisowiec, Aleksander ; Steplewski, Wojciech
Author_Institution :
Tele & Radio Res. Inst., Warsaw
Abstract :
Fivefold decrease of RMS jitter of 1 pps pulse from GPS receiver after SA switch-off and relatively short period required to filter it out has enabled the construction of GPS synchronized frequency sources of parameters almost order of magnitude better than with SA. At present state of the art, quartz resonator technology limit parameters of GPS synchronized quartz frequency source are 10-11 medium (over 1000 s) and 4.10-13 long term (over 24 hours) frequency stability. To considerably improve these parameters, a quartz oscillator should be constructed with aging below 5.10-12 per day and temperature variations less than 1.10-11 over 0-50degC temperature range
Keywords :
Global Positioning System; crystal oscillators; frequency stability; parameter estimation; radio receivers; synchronisation; timing jitter; GPS disciplined quartz frequency sources; GPS receiver; GPS synchronized quartz frequency source; RMS jitter; SA switch-off; long term frequency stability; quartz oscillator; quartz resonator technology limit parameters; Aging; Digital-analog conversion; Filters; Frequency control; Frequency measurement; Global Positioning System; Oscillators; Phase measurement; Temperature; Time measurement;
Conference_Titel :
Advanced Optoelectronics and Lasers, 2003. Proceedings of CAOL 2003. First International Conference on
Conference_Location :
Alushta, Crimea
Print_ISBN :
0-7803-7948-9
DOI :
10.1109/CAOL.2003.1251326
