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Math Help - Random Noise

  1. #1
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    Random Noise

    What does the following statement mean?: "Random noise adds quadratically."?
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  2. #2
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    Quote Originally Posted by exaramco View Post
    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).
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  3. #3
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    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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