attenuation
n. reduction; weakening; decrease; diminution; being weakened; weakening of a signal as the length of a network cable increases (Computers) | ||||
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Attenuation definition was found in categories: Computer & Internet(3) Government(1) Language, Idioms & Slang(4) Science & Technology(5) Society & Culture(2) Entertainment & Music(2) Encyclopedia(1)
Attenuation Definition from Computer & Internet Dictionaries & Glossaries
| FOLDOC |
attenuation
<communications> The progressive reduction in amplitude of a signal as it travels farther from the point of origin.
For example, an electric signal's amplitude reduces with distance due to electrical impedance. Attenuation is usually measured in decibels [per metre?].
Attenuation does not imply appreciable modification of the shape of the waveform (distortion), though as the signal amplitude falls the signal-to-noise ratio will also fall unless the channel itself is noise free or the signal is amplified at some intermediate point(s) along the channel.
["Networking Essentials, second edition", Microsoft Corporation, pub. Microsoft Press 1997].
(2003-07-29)
<communications> The progressive reduction in amplitude of a signal as it travels farther from the point of origin.
For example, an electric signal's amplitude reduces with distance due to electrical impedance. Attenuation is usually measured in decibels [per metre?].
Attenuation does not imply appreciable modification of the shape of the waveform (distortion), though as the signal amplitude falls the signal-to-noise ratio will also fall unless the channel itself is noise free or the signal is amplified at some intermediate point(s) along the channel.
["Networking Essentials, second edition", Microsoft Corporation, pub. Microsoft Press 1997].
(2003-07-29)
| Internet Glossary |
Attenuation
Reduction of signal strength during transmission. Attenuation is the opposite of amplification, and is normal when a signal is sent from one point to another. If the signal attenuates too much, it becomes unintelligible, which is why most networks require repeaters at regular intervals. Attenuation is measured in decibels.
Reduction of signal strength during transmission. Attenuation is the opposite of amplification, and is normal when a signal is sent from one point to another. If the signal attenuates too much, it becomes unintelligible, which is why most networks require repeaters at regular intervals. Attenuation is measured in decibels.
| ATM Forum |
Attenuation
as it passes through most media. Usually proportional to distance, attenuation is sometimes the factor that limits the distance a signal may be transmitted through a media before it can no longer be received.
as it passes through most media. Usually proportional to distance, attenuation is sometimes the factor that limits the distance a signal may be transmitted through a media before it can no longer be received.
Attenuation Definition from Government Dictionaries & Glossaries
| DOD Dictionary of Military Terms |
attenuation
(*) 1. Decrease in intensity of a signal, beam, or wave as a result of absorption of energy and of scattering out of the path of a detector, but not including the reduction due to geometric spreading, i.e., the inverse square of distance effect. 2. In mine warfare, the reduction in intensity of an influence as distance from the source increases. 3. In camouflage and concealment, the process of making an object or surface less conspicuous by reducing its contrast to the surroundings and/or background. Also called tone down.
(*) 1. Decrease in intensity of a signal, beam, or wave as a result of absorption of energy and of scattering out of the path of a detector, but not including the reduction due to geometric spreading, i.e., the inverse square of distance effect. 2. In mine warfare, the reduction in intensity of an influence as distance from the source increases. 3. In camouflage and concealment, the process of making an object or surface less conspicuous by reducing its contrast to the surroundings and/or background. Also called tone down.
Attenuation Definition from Language, Idioms & Slang Dictionaries & Glossaries
| Webster's Revised Unabridged Dictionary (1913) |
Attenuation
(n.)
The process of weakening in intensity; diminution of virulence; as, the attenuation of virus.
(n.)
The act or process of making slender, or the state of being slender; emaciation.
(n.)
The act of attenuating; the act of making thin or less dense, or of rarefying, as fluids or gases.
(n.)
The process of weakening in intensity; diminution of virulence; as, the attenuation of virus.
(n.)
The act or process of making slender, or the state of being slender; emaciation.
(n.)
The act of attenuating; the act of making thin or less dense, or of rarefying, as fluids or gases.
| WordNet 2.0 |
attenuation
Noun
1. weakening in force or intensity; "attenuation in the volume of the sound"
(synonym) fading
(hypernym) weakening
(derivation) attenuate
2. the property of something that has been weakened or reduced in thickness or density
(hypernym) weakness
(derivation) rarefy, attenuate
Noun
1. weakening in force or intensity; "attenuation in the volume of the sound"
(synonym) fading
(hypernym) weakening
(derivation) attenuate
2. the property of something that has been weakened or reduced in thickness or density
(hypernym) weakness
(derivation) rarefy, attenuate
| hEnglish - advanced version |
attenuation
attenuation
\at*ten`u*a"tion\ (&?;), n. [l. attenuatio: cf. f. atténuation.]
1. the act or process of making slender, or the state of being slender; emaciation.
2. the act of attenuating; the act of making thin or less dense, or of rarefying, as fluids or gases.
3. the process of weakening in intensity; diminution of virulence; as, the attenuation of virus.
attenuation
\at*ten`u*a"tion\ (&?;), n. [l. attenuatio: cf. f. atténuation.]
1. the act or process of making slender, or the state of being slender; emaciation.
2. the act of attenuating; the act of making thin or less dense, or of rarefying, as fluids or gases.
3. the process of weakening in intensity; diminution of virulence; as, the attenuation of virus.
| JM Welsh <=> English Dictionary |
Teneuad
Teneuad = n. attenuation
Teneuad = n. attenuation
Attenuation Definition from Science & Technology Dictionaries & Glossaries
| NRC Nuclear Energy Glossary |
Attenuation
The process by which the number of particles or photons entering a body of matter is reduced by absorption and scattered radiation.
The process by which the number of particles or photons entering a body of matter is reduced by absorption and scattered radiation.
| Glossary of Marine Biology |
Attenuation (of light).
Diminution of light intensity; explained,in the ocean,in terms of absorption and scattering
Diminution of light intensity; explained,in the ocean,in terms of absorption and scattering
| Fiber Optics, Optical Networking Terms |
Attenuation
1. In an optical fiber, the absorption of light by molecules in the fiber — causing some of the intensity of the light to be lost from the signal. Usually measured in dB/km. 2. The decrease in signal strength along a fiber optic waveguide caused by absorption and scattering.
1. In an optical fiber, the absorption of light by molecules in the fiber — causing some of the intensity of the light to be lost from the signal. Usually measured in dB/km. 2. The decrease in signal strength along a fiber optic waveguide caused by absorption and scattering.
| Telecommunication Standard Terms |
attenuation
The decrease in intensity of a signal, beam, or wave as a result of absorption of energy and of scattering out of the path to the detector, but not including the reduction due to geometric spreading. [After JP1] Note 1: Attenuation is usually expressed in dB. Note 2: "Attenuation" is often used as a misnomer for "attenuation coefficient, " which is expressed in dB per kilometer. Note 3: A distinction must be made as to whether the attenuation is that of signal power or signal electric field strength.
The decrease in intensity of a signal, beam, or wave as a result of absorption of energy and of scattering out of the path to the detector, but not including the reduction due to geometric spreading. [After JP1] Note 1: Attenuation is usually expressed in dB. Note 2: "Attenuation" is often used as a misnomer for "attenuation coefficient, " which is expressed in dB per kilometer. Note 3: A distinction must be made as to whether the attenuation is that of signal power or signal electric field strength.
| Technical English by wpv |
ATTENUATION
The sound reduction process in which sound energy is absorbed or diminished in intensity as the result of energy conversion from sound to motion or heat.
The sound reduction process in which sound energy is absorbed or diminished in intensity as the result of energy conversion from sound to motion or heat.
Attenuation Definition from Society & Culture Dictionaries & Glossaries
| EPA Terms of Environment |
Attenuation
The process by which a compound is reduced in concentration over time, through absorption, adsorption, degradation, dilution, and/or transformation. an also be the decrease with distance of sight caused by attenuation of light by particulate pollution.
The process by which a compound is reduced in concentration over time, through absorption, adsorption, degradation, dilution, and/or transformation. an also be the decrease with distance of sight caused by attenuation of light by particulate pollution.
| Environmental Engineering (English ver.) |
Attenuation
The process of reduction of a compound's concentration over time. This can be through absorption, adsorption, degradation, dilution or transformation.
The process of reduction of a compound's concentration over time. This can be through absorption, adsorption, degradation, dilution or transformation.
Attenuation Definition from Entertainment & Music Dictionaries & Glossaries
| film and video |
Attenuation
This refers to signal loss in a transmission system
This refers to signal loss in a transmission system
| The DJ Glossary |
Attenuation
To reduce in signal level.
To reduce in signal level.
Attenuation Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Attenuation
Attenuation is the reduction in amplitude and intensity of a signal. Signals may be attenuated exponentially by transmission through a medium, in which case attenuation is usually reported in dB with respect to distance traveled through the medium. Attenuation can also be understood to be the opposite of amplification. Attenuation is an important property in telecommunications and ultrasound applications because of its importance in determining signal strength as a function of distance. Attenuation is usually measured in units of decibels per unit length of medium (dB/cm, dB/km, etc) and is represented by the attenuation coefficient of the medium in question.
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