modulation factor

modulation factor

[‚mäj·ə′lā·shən ‚fak·tər]
(communications)
In general, the ratio of the peak variation in the modulation actually used in a transmitter to the maximum variation for which the transmitter was designed.
In an amplitude-modulated wave, the ratio (usually expressed in percent) of the peak variation of the envelope from its reference value, to the reference value. Also known as index of modulation.
In a frequency-modulated wave, the ratio of the actual frequency swing to the frequency swing required for 100% modulation.
References in periodicals archive ?
The modulation factor (MF) was used to evaluate the modulating effects of compounds on MICs of antibiotics according to the following formula: MF = MIC antibiotic/MIC antibiotic + modulator.
Table 1 Minimum inhibitory concentration (MIC), modulation factor (MF), and fractional inhibitory concentration (FIC) values of antibiotics and ethidium bromide alone and in combination with compounds 1-13, for S.
Modulation factors (MF) were determined to express and compare the effect displayed by the compounds on the antibiotics MIC reduction.
The section S2 is switched off from the myocardial contractility circuit, thereby decreasing the modulation factor from 1 to 0.
The situation using software and a gain modulation factor would also introduce unexpected complications.
Under this constraint, the gain modulation factor will be strongly affected by any differences between the [T.
PLANCK has the ability to calculate the gain modulation factor, r, directly from radiometer data acquired with the spectrometer operating in absolute mode [47].
The manner in which the knee frequency is affected by both the gain modulation factor, r, and the absolute sky temperature [48], has been described algebraically:
sky] will have a much lower value than foreseen, the gain modulation factor, r, will be moving away from unity.
Under test conditions, the PLANCK team estimated gain modulation factors ranging from 0.
The NFU's outright rejection of the modulation factor - which is seen as robbing Peter to pay Paul - is understandable.
Over the years Denzil signed up to Tir Mynydd, the old hill land compensatory scheme with flock and suckler cow payments; then Tir Gofal, which worked around a points system for conservation issues and now Tir Cynnal, which is concerned with the environment and is intended to work around modulation factors.