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> Signal-to-noise ratio (Given the RMS amplitude both signal and noise in decibels)
Signal-to-noise ratio (Given the RMS amplitude both signal and noise in decibels)
Formula
SNRdB
signal-to-noise ratio in decibels
Asignal
RMS amplitude of the signal in decibels
Anoise
RMS amplitude of the background noise in decibels
Formula description
Because many signals have a very wide dynamic range, for example, in decibels, SNRs are often expressed using the logarithmic decibel scale.
Calculator (
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Asignal
Anoise
SNRdB
Precision
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Formula code
C
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Java
JavaScript
LaTeX
PHP
#include
SNRdB = 20*log10(Asignal/Anoise)
SNRdB = 20*Math.Log10(Asignal/Anoise)
#include
SNRdB = 20*log10(Asignal/Anoise)
SNRdB = 20*java.lang.Math.log10(Asignal/Anoise)
SNRdB = 20*Math.log(Asignal/Anoise)/Math.LN10
SNR_{dB} = 20 \log _{10} \left( \frac{A_{signal}}{A_{noise}}\right)
$SNRdB = 20*log10($Asignal/$Anoise)
References
Wikipedia: Signal-to-noise ratio.
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