DocumentCode :
2590563
Title :
Emerging applications requiring precision time and frequency
Author :
Bloch, M. ; Léonard, D. ; Mancini, O. ; McClelland, T.
Author_Institution :
Freq. Electron., Inc., Mitchel Field, NY, USA
fYear :
2009
fDate :
20-24 April 2009
Firstpage :
364
Lastpage :
371
Abstract :
Numerous commercial and military applications utilize precision quartz oscillators and/or atomic frequency standards to generate super-accurate frequencies and time signals crucial to system performance. Examples where precise time and frequency is essential are telecommunications, drilling for natural resources, synchronizing railroads, satellite ground stations, laboratory standards and various others. In military applications precise time and frequency is essential for synchronizing communications, for radar applications, for emitter locators and other. In this paper, we will present precision quartz oscillator and/or rubidium vapor atomic oscillator applications as well as data that demonstrates achieved performance for synchronizing DVB-T, UMTS-FDD, TDD, WiMAX and LTE communications, for seismic methods while drilling for natural resources in challenging environments, for beamforming in satellite ground stations, for synchronizing military communications that require time errors less than 500 ns in 24 hours holdover during severe temperature changes and for various other applications.
Keywords :
3G mobile communication; WiMax; atomic clocks; crystal oscillators; digital video broadcasting; frequency measurement; military standards; quartz; rubidium; telecommunication standards; time measurement; DVB-T; LTE; Rb; SiO2; TDD; UMTS-FDD; WiMAX; military communications; precision frequency; precision quartz oscillators; precision time; rubidium vapor atomic oscillator; Atomic clocks; Drilling; Frequency synchronization; Laboratories; Military communication; Military standards; Oscillators; Satellite ground stations; Signal generators; System performance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International
Conference_Location :
Besancon
ISSN :
1075-6787
Print_ISBN :
978-1-4244-3511-1
Electronic_ISBN :
1075-6787
Type :
conf
DOI :
10.1109/FREQ.2009.5168202
Filename :
5168202
Link To Document :
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