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Signal to noise ratio and signal to interference noise ratio

2022-04-21 23:24:00 【New doggerel imitating ancient times】

1、 Signal-to-noise ratio

namely Shannon formula （ Channel capacity formula ） Medium S/N：
$\bullet \log _{2}\left(1+\frac{S}{N}\right)$
Also remember SNR（Signal Noise Ratio）, The difference lies in ：S/N It's dimensionless ; and SNR The dimension of is dB

2、SNR and SINR

SINR Letter to interference ratio ,Signal to Interference plus Noise Ratio

SNR yes SINR Special cases without interference , Shannon's formula uses SNR Because the premise of Shannon formula is that there is only additive Gaussian white noise in the system .

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