pulse modulation


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pulse modulation

n.
A system of modulation in which pulses are altered and controlled in order to represent the message to be communicated.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

pulse modulation

n
1. (Electronics) a type of modulation in which a train of pulses is used as the carrier wave, one or more of its parameters, such as amplitude, being modulated or modified in order to carry information
2. (Electronics) the modulation of a continuous carrier wave by means of pulses
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pulse modulation - modulation that imposes a signal on a train of pulses
modulation - (electronics) the transmission of a signal by using it to vary a carrier wave; changing the carrier's amplitude or frequency or phase
pulse-time modulation - modulation of the time between successive pulses
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References in periodicals archive ?
Types of PRI modulation supported include CW, constant, jittered, discrete jittered, staggered, pulse modulation, and switch and dwell.
It recommended more research into the pulse modulation of TETRA and its biological effects.
Recent measurements have demonstrated coherence times exceeding 100 s--corresponding to over 10 x [10.sup.10] consecutive laser pulses--of the optical-frequency carrier wave with respect to its pulse modulation.
Features include a contrast indicator for easy set-up and performance monitoring, pulse modulation for high immunity to ambient light, complementary NPN or PNP output transistors and response time of 800 microseconds.
Featuring a high signal purity with phase noise measuring <-110 dBc/Hz @ 20 kHz offset (typical) and a wide output range of -130 dBm to +13 dBm, the DSG3000 RF signal generator has standard pulse modulation with an on/off ratio of up to 80 dB; an optional pulse train generator is available.
The LMS Series also offers advanced operating features such as phase-continuous linear frequency sweeping, optional internal/external pulse modulation, and a selectable internal/external 10 MHz reference.
As shown in Figure 1, pulse modulation is characterized by the pulse width (or pulse duration), interval, and amplitude.
The Source Modules reproduce the pulse modulation of the driving signal with one caveat.