Modulation meaning

mŏjə-lāshən
Frequency:
The act or process of modulating.
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The variation of a property of an electromagnetic wave or signal, such as its amplitude, frequency, or phase.
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The state of being modulated.
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The harmonious use of language, as in poetry or prose.
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The variation of a property of an electromagnetic wave or signal, such as its amplitude, frequency, or phase.
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A modulating or being modulated.
  • A shifting from one key to another.
  • A variation in the amplitude, frequency, or phase of a wave in accordance with some signal.
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A variation in stress or pitch in speaking, as in distinguishing between the merely auxiliary and the lexical uses of a word (Ex.: “There is a post office on Main Street,” as contrasted with “There is the post office”)
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The act or process of modulating.
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The state of being modulated.
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The harmonious use of language, as in poetry or prose.
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Modulation refers to altering an oscillating, fixed-frequency carrier wave (radio wave) in order to transmit data, audio or video from one location to another, either wired or wireless. The data are merged into the carrier.At the receiving end, a tuner latches onto the particular carrier frequency and a demodulator circuit isolates the data from the carrier. See carrier.In traditional analog telephony, modulation alters a DC current. In such a conversation, both parties are modulating the current simultaneously.Amplitude, Frequency and PhaseThere are three basic types of modulation: amplitude modulation (AM) varies the voltage; frequency modulation (FM) varies the frequency, and phase modulation (PM) varies the angle of the wave. In quadrature amplitude modulation (QAM), both amplitude and phase are modified. See amplitude modulation, frequency modulation, phase modulation and QAM.
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The process of applying a signal to a carrier, modulating.
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Methods of modulating.
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