Frequency modulation - Wikipedia, the free encyclopedia
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In telecommunications, frequency modulation ( FM ) conveys information over a carrier wave by varying its frequency (contrast this with amplitude modulation, in which the amplitude of the carrier ...
en.wikipedia.org/wiki/Frequency_modulation
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The high-level modulation method is the application of the modulating voltage to the plate circuit of the class C final, causing the output amplitude to vary in accordance with the applied modulation.
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www.qsl.net/wa5bxo/asyam/aam3.html
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Accession Number : ADA313485 ... Amplitude modulation of an Argon-Ion Laser operating at 514.5 nm at twenty-five percent modulation at 125 MHz has been achieved.
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stinet.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=...
stinet.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA313485
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Abstract: The purpose of this thesis is to examine the possibility of using a commercial elecro-optic modulator, the LM 0202 P modulator manufactured by Gsanger Opto-Elektroniks of Germany, Amplitude modulation of an Argon-Ion Laser operating at 514.5 nm at twenty-five percent modulation at 125 MHz has been achieved.
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www.stormingmedia.us/58/5843/A584313.html
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CROSS-REFERENCE TO RELATED APPLICATION ... [0005] Currently, essentially all forms of the radio transmission of information are carried out with amplitude modulation, frequency modulation, pulse modulation or combinations of one or more. All such forms of modulation have inherent inefficiencies.
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freepatentsonline.com/20020058484.html
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The applied phase correction alters an associated phase of the input signal without applying amplitude modulation to the signal. A linear distortion source applies amplitude distortion and ... For example, in an application where a constant envelope signal needs to be combined with other signals into a common antenna,
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www.freepatentsonline.com/20070242772.html
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A device (5) for determining k representative of the magnitude A of an orthogonal component of a Quadrature Amplitude Modulation (QAM) symbol, including: ... The invention has particular application to code division multiple access and other spread spectrum receivers, and it will be convenient to describe the invention...
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www.freepatentsonline.com/70185949.html
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A classic application of signals and systems is the analysis of communication systems. Amplitude modulation is the simplest way of increasing the frequency ...
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documents.wolfram.com/applications/signals/AmplitudeMod...
documents.wolfram.com/applications/signals/AmplitudeModulation.html
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