[PD] Box Muller Gaussian noise

Charles Henry czhenry at gmail.com
Sun Mar 16 17:37:08 CET 2008


On Sun, Mar 16, 2008 at 11:16 AM, Martin Peach
<martin.peach at sympatico.ca> wrote:
>  (gaussianoise has occasional values that exceed [-1 ... 1], which I
>  suppose is normal...white noise is always on [-1...1])

That's true.  With the Box-Muller method, there is the log(~U1) term,
but you can always just add a small value to U1, which will truncate
your distribution.  The size of the small value can be calculated to
fit with any given threshold.

>
>  With white noise there should be no preferred values but gaussian noise
>  will have a lot more hovering around zero.
>
>  Martin
>
>
>
>  >
>  > Cheers all,
>  >
>  > Andy
>  >
>  >
>  >
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