What does the following statement mean?: "Random noise adds quadratically."?
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Originally Posted by exaramco What does the following statement mean?: "Random noise adds quadratically."? It is the power of the noise sources that adds.
Power is proportional to the square of the signal amplitude (voltage).
OK. Does this mean that if I add N sets of pure signal I get a signal enhancement of N and a power enhancement of Nsquared; whereas if I add N sets of random noise signals I get a noise enhancement of sqrt(n) and a power enhancemnt of N?
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