https://doi.org/10.1351/goldbook.08282
Power of signal divided by power of noise.
Notes:
- When signal and noise are measured across the same impedance, SNR is often calculated as the root-mean-squared amplitude of the signal divided by the root-mean-squared amplitude of the noise.
- The value of signal-to-noise ratio may be expressed in decibel (\(\rm{SNR}_{\rm{dB}}\)) as ten times the logarithm to base 10 of signal-to-noise ratio.
- Initialisms should not be used to denote a quantity in expressions and formulae. \(R_{\rm{S/N}}\) is recommended.