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matlabsimulinknoisestandard-deviation

Calculate standard deviation from band-limited white noise

I have a Band-Limited White Noise block with a given Noise Power. What is the mathematic equation between this Noise power and the standard deviation of the signal?

I could use the std function in Matlab to calculate the standard deviation but there must be a equation based correlation like:

sigma = ? * S

Could anybody help me out there?

Edit 1: Example.

I have: The Noise power and sample time. I want: Standard deviation via an equation enter image description here

Solution

  • Okay, thank you. You were right. I didn´t see it.

    The answer is:

    sqrt(Noise Power / Sample Time)