Calculadora de Sinal-Ruído por Empilhamento — Formula
## Signal-to-Noise Improvement from Stacking
Stacking multiple exposures averages out random noise while the signal adds coherently.
### Formula
**SNR_total = SNR_single * sqrt(N)**
- *N* = number of stacked frames
Doubling the SNR requires four times as many frames. This is the square-root law of signal averaging.
Stacking multiple exposures averages out random noise while the signal adds coherently.
### Formula
**SNR_total = SNR_single * sqrt(N)**
- *N* = number of stacked frames
Doubling the SNR requires four times as many frames. This is the square-root law of signal averaging.
Exemplo Resolvido
Stack 100 frames each with SNR = 5.
- SNR_total = SNR_single * sqrt(N)
- SNR_total = 5 * sqrt(100)
- SNR_total = 5 * 10 = 50