reference frequency

reference frequency

[′ref·rəns ‚frē·kwən·sē]
(communications)
Frequency having a fixed and specified position with respect to the assigned frequency.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The start-up algorithm provides the reference frequency [f.sub.ref], which, after the IG speed and the VSI DC voltage reach the rated values, is set to 50 Hz where it remains during the IG normal operation.
This condition is achieved by using one common high stable source of reference frequency [f.sub.RO] based on a precision quartz oscillator.
control group (N=30) and also with the reference frequency distribution of blood group among the general population by Chi-square test [12] and a P value of 0.05 was considered significant for all the statistical test conducted.
In these four equations, the parameter [f.sup.ref] is the reference frequency, [[theta].sup.ref.sub.i] introduce the three transition temperatures for a chosen reference frequency.
In other words, we get and process the temporal signal from the lossless chamber, then transform it to frequency domain, and compared it with the reference frequency signal obtained from the lossy cavity.
AT-cut crystal resonators were used to generate the RF reference frequency of 32.0000 MHz.
Dividing both sides of (1) by reference mass m, reference frequency [[omega].sup.2.sub.o], and reference length [q.sub.o], the dynamics can be derived as
Two orders of the reference frequency can be easily and appropriately selected to determine Rayleigh damping coefficients when the degree of freedom of a structure is low or the dynamic response of this structure is controlled by some low-order modes.
where [mathematical expression not reproducible] is the uncertainty in the reference frequency, and [u.sub.GCF] is the uncertainty in GCF.
When using it, the designer inputs the required output frequency range, step size, PFD frequency and reference frequency constraints, and loop filter parameters, and then selects the available clock generator output dividers and PLL reference input dividers.
Separate samples from the reference frequency distribution were taken for a radiation-exposed group and a control group with DOR and DRR calculated for each set of values and BAF evaluated as BAF=DOR/DRR.

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