Definitions for amplitude modulation
am·pli·tude mod·u·la·tion

Princeton's WordNetRate this definition:0.0 / 0 votes

1. amplitude modulation, AMnoun

   modulation of the amplitude of the (radio) carrier wave

WiktionaryRate this definition:0.0 / 0 votes

1. amplitude modulationnoun

   A method of sending information by modifying (modulating) the intensity (amplitude) of a carrier wave. Commonly abbreviated AM.

WikipediaRate this definition:0.0 / 0 votes

1. Amplitude modulation

   Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude modulation, the amplitude (signal strength) of the wave is varied in proportion to that of the message signal, such as an audio signal. This technique contrasts with angle modulation, in which either the frequency of the carrier wave is varied, as in frequency modulation, or its phase, as in phase modulation. AM was the earliest modulation method used for transmitting audio in radio broadcasting. It was developed during the first quarter of the 20th century beginning with Roberto Landell de Moura and Reginald Fessenden's radiotelephone experiments in 1900. This original form of AM is sometimes called double-sideband amplitude modulation (DSBAM), because the standard method produces sidebands on either side of the carrier frequency. Single-sideband modulation uses bandpass filters to eliminate one of the sidebands and possibly the carrier signal, which improves the ratio of message power to total transmission power, reduces power handling requirements of line repeaters, and permits better bandwidth utilization of the transmission medium. AM remains in use in many forms of communication in addition to AM broadcasting: shortwave radio, amateur radio, two-way radios, VHF aircraft radio, citizens band radio, and in computer modems in the form of QAM.

ChatGPTRate this definition:0.0 / 0 votes

1. amplitude modulation

   Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. This method works by varying the strength (amplitude) of the carrier wave in proportion to the waveform being sent, which typically corresponds to sounds directly produced by human speech or musical instruments. This waveform may correspond to sounds that are to be reproduced by a loudspeaker, or the light intensity of television pixels.

WikidataRate this definition:0.0 / 0 votes

1. Amplitude modulation

   Amplitude modulation is a technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. AM works by varying the strength of the transmitted signal in relation to the information being sent. For example, changes in signal strength may be used to specify the sounds to be reproduced by a loudspeaker, or the light intensity of television pixels. Contrast this with frequency modulation, in which the frequency is varied, and phase modulation, in which the phase is varied in accordance to the modulating signal. In the mid-1870s, a form of amplitude modulation—initially called "undulatory currents"—was the first method to successfully produce quality audio over telephone lines. Beginning with Reginald Fessenden's audio demonstrations in 1906, it was also the original method used for audio radio transmissions, and remains in use today by many forms of communication—"AM" is often used to refer to the mediumwave broadcast band.

Matched Categories

1. • Modulation

How to pronounce amplitude modulation?

1. Alex

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   David

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   Mark

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   Daniel

   British

   Libby

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   Mia

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   Karen

   Australian

   Hayley

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   Neerja

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How to say amplitude modulation in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of amplitude modulation in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of amplitude modulation in Pythagorean Numerology is: 9

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=amplitude modulation
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Amplitude_Modulation
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Amplitude_Modulation
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=amplitude modulation