Amplitude Modulation
<communications> (AM) A method of encoding data by varying the amplitude of a constant frequency carrier. Contrast Frequency Modulation. (2001-04-30) | ||||
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Amplitude Modulation Definition from Language, Idioms & Slang Dictionaries & Glossaries
| WordNet 2.0 |
amplitude modulation
Noun
1. modulation of the amplitude of the (radio) carrier wave
(synonym) AM
(hypernym) modulation
Noun
1. modulation of the amplitude of the (radio) carrier wave
(synonym) AM
(hypernym) modulation
Amplitude Modulation Definition from Science & Technology Dictionaries & Glossaries
| Dictionary of Automotive Terms |
Amplitude modulation
A type of radio wave in which the amplitude changes rather than the frequency.
See frequency modulation.
A type of radio wave in which the amplitude changes rather than the frequency.
See frequency modulation.
| Fiber Optics, Optical Networking Terms |
Amplitude Modulation
A transmission technique in which the amplitude of t carrier is varied in accordance with the signal.
A transmission technique in which the amplitude of t carrier is varied in accordance with the signal.
| Telecommunication Standard Terms |
amplitude modulation (AM)
Modulation in which the amplitude of a carrier wave is varied in accordance with some characteristic of the modulating signal . (188 ) Note: Amplitude modulation implies the modulation of a coherent carrier wave by mixing it in a nonlinear device with the modulating signal to produce discrete upper and lower sidebands, which are the sum and difference frequencies of the carrier and signal. The envelope of the resultant modulated wave is an analog of the modulating signal. The instantaneous value of the resultant modulated wave is the vector sum of the corresponding instantaneous values of the carrier wave, upper sideband , and lower sideband. Recovery of the modulating signal may be by direct detection or by heterodyning.
Modulation in which the amplitude of a carrier wave is varied in accordance with some characteristic of the modulating signal . (188 ) Note: Amplitude modulation implies the modulation of a coherent carrier wave by mixing it in a nonlinear device with the modulating signal to produce discrete upper and lower sidebands, which are the sum and difference frequencies of the carrier and signal. The envelope of the resultant modulated wave is an analog of the modulating signal. The instantaneous value of the resultant modulated wave is the vector sum of the corresponding instantaneous values of the carrier wave, upper sideband , and lower sideband. Recovery of the modulating signal may be by direct detection or by heterodyning.
| Abbreviation Airbus A340 |
AM
Amplitude Modulation: This type of modulation for boardcast systems modulates the amplitude of a carrier signal to transmit data.
Amplitude Modulation: This type of modulation for boardcast systems modulates the amplitude of a carrier signal to transmit data.
| AJA_RF Technical and TestTerminology |
Amplitude modulation
A type of modulation in which the amplitude of the carrier is varied above and below its unmodulated value by an amount proportional to the amplitude and frequency of the modulating signal.
A type of modulation in which the amplitude of the carrier is varied above and below its unmodulated value by an amount proportional to the amplitude and frequency of the modulating signal.
Amplitude Modulation Definition from Entertainment & Music Dictionaries & Glossaries
| English to Federation-Standard Golic Vulcan |
Amplitude modulation (AM)
tsulau-nakihtilaya
tsulau-nakihtilaya
Amplitude Modulation Definition from Computer & Internet Dictionaries & Glossaries
| Electronic Music Glossary |
Amplitude Modulation
A change in the level of a signal. For example, if a Voltage Controlled Amplifier (VCA) were being modulated by a Low Frequency Oscillator (LFO), the result would be a periodic increase and decrease in the audio level of the signal. In musical terms this would be referred to as Tremolo. The abbreviation of Amplitude Modulation is AM.
A change in the level of a signal. For example, if a Voltage Controlled Amplifier (VCA) were being modulated by a Low Frequency Oscillator (LFO), the result would be a periodic increase and decrease in the audio level of the signal. In musical terms this would be referred to as Tremolo. The abbreviation of Amplitude Modulation is AM.
Amplitude Modulation Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Amplitude modulation
Amplitude modulation (AM) 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 the signal strength can be used to reflect the sounds to be reproduced by a speaker, or to specify the light intensity of television pixels. (Contrast this with frequency modulation, also commonly used for sound transmissions, in which the frequency is varied; and phase modulation, often used in remote controls, in which the phase is varied.)
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