Noise Proportional to Square Root of Illumination: Need Formula Help

In summary, the relationship between noise and illumination can be described by the formula "noise is proportional to the square root of illumination." This means that as the level of illumination increases, the amount of noise in the system also increases, but at a slower rate. This formula can be helpful in understanding and predicting the amount of noise present in an image or signal, and can aid in the development of noise reduction techniques.
  • #1
Joseffina
TL;DR Summary
Influence of street illumination on laser radiation of a laser acoustic reconnaissance system
Many people have said that the noise that affects laser light is proportional to the square root of the illumination. But I can't find the formula. Can anyone help?
 

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