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excess noise ratio (ENR)

The Excess Noise Ratio (ENR) is a temperature-dependent noise ratio. It is defined as the noise generated above 290 Kelvin

(K), i.e. above room temperature. Typically, the ENR value, which is expressed in decibels (dB) and calculated from the logarithm of the temperature difference, is plotted as a graph of temperature in Kelvin versus frequency.

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Englisch: excess noise ratio - ENR
Updated at: 22.02.2009
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Translations: DE