Frequency and time in communications

Smith, W. L.

doi:10.1109/proc.1972.8694

Cited by 5 publications

(1 citation statement)

References 9 publications

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“…Well-established terminology and standards such as EIA RS-250-1961 were unique to telephony [35]. The stability requirements of the baseband channel frequencies were stringent, but a greater problem for FM and FDM multiplex design was residual noise due to oscillator instability.…”

Section: ) Frequency Division Multiplexed Telephonymentioning

confidence: 99%

Oscillator Phase Noise: A 50-Year Review

Leeson

2016

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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Fifty years ago emerging requirements in oscillator applications led to the 1964 IEEE-NASA Symposium on Short-term Frequency Stability. Following that, IEEE Technical Committee 14.7 was established to unify time- and frequency-domain definitions of frequency stability. I had the good fortune to participate and contribute as a member of the symposium program committee and the IEEE committee. This paper is a personal retrospective of events that are said to have shaped our field: the 1964 Symposium, the 1966 Proc. IEEE special issue on frequency stability we edited (with comments on my oscillator-model paper), and our 1971 paper, "Characterization of Frequency Stability," written as a basis for IEEE STD 1139.

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Section: ) Frequency Division Multiplexed Telephonymentioning

confidence: 99%

Oscillator Phase Noise: A 50-Year Review

Leeson

2016

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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Pegel- und Dämpfungsmessungen

Schuon¹,

Wolf²

1987

Nachrichten-Meßtechnik

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Reference Transmission Over Bell System Radio and Coaxial Facilities

Powers¹

1974

28th Annual Symposium on Frequency Control

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A recent field trial has demnstrated that reference frequency signals can be transmitted over telecommunication transmission system with a propagat i o n error less t H a n +l p a r t in and typically less than +5 p a r t s In l 0 l F o v e r a 15 m u t e measuring period. Short term s t a b i l i t y measures 4-6 p a r t s i n lo9 over 0.1 second. Tnis data applies to 2.048 MHz reference frequency signals measured after 1000 miles of transmission over Bell System radio and coaxial f a c i l i t i e s .

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Frequency and time in communications

Cited by 5 publications

References 9 publications

Oscillator Phase Noise: A 50-Year Review

Oscillator Phase Noise: A 50-Year Review

Pegel- und Dämpfungsmessungen

Reference Transmission Over Bell System Radio and Coaxial Facilities

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