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A SELF TUNING PHASE-LOCKED LOOP

International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, California / The uncertainty in the gain of voltage controlled crystal oscillators (VCXOs) used in the
implementation of certain analog phase-locked loops (PLLs) suggests some form of
automatic tuning algorithm, both for pretuning and during operation. This paper proposes
an adaptive PLL (APLL) algorithm to fill this need for PLLs used in the recovery of tones
in noise. This algorithm makes use of a resonant error algorithm to remove the effects of
VCXO noise, measurement noise, and parasitic poles. Both classical convergence
theorems and robustness theorems that indicate the functionality of the proposed algorithm
are given. Finally, the implementation of this algorithm is considered.

Identiferoai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/608941
Date10 1900
CreatorsHardwicke, K. R.
ContributorsApplied Research Labs
PublisherInternational Foundation for Telemetering
Source SetsUniversity of Arizona
Languageen_US
Detected LanguageEnglish
Typetext, Proceedings
RightsCopyright © International Foundation for Telemetering
Relationhttp://www.telemetry.org/

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