Experimental performance of a frequency measurement circuit.
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Authors
Eastwood, George H.
Subjects
Signal to noise ratio
Zero Crossings
Phase locked loop
Zero Crossings
Phase locked loop
Advisors
Myers, G.A.
Date of Issue
1984
Date
December 1984
Publisher
Monterey, CA; Naval Postgraduate School
Language
en_US
Abstract
The accuracy with which the frequency of a sinusoid and a pulsed sinusoid can be measured using a phase locked loop is investigated. A frequency divider is inserted into the feedback loop and a very stable local clock is used to determine the effect of these modifications on the frequency measurement accuracy of the phase locked loop. The primary result is that there is no theoretical limit to the accuracy of frequency measurement, independent of gate time, using a phase locked loop with frequency division and very stable clocks. The practical tradeoffs for improved frequency measurement accuracy are a higher required signal to noise ratio and a reduction of the frequency capture range of the phase locked loop.
Type
Thesis
Description
Series/Report No
Department
Department of Electrical and Computer Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funding
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.