[sdiy] Handy DIY tip #213/noise color

[Ian Fritz]

Another example: Suppose you are trying to make a pure white noise source. 
If the junction you are using is not ideal, you also get some undesirable 
1/f or popcorn noise at low frequency.  So that "bad" noise would be the 
"noise" and the "good" (white) noise would be the "signal".

   Ian


>In the case of a noise generator, the noise IS the signal, so any signal
>contained in the noise, would be considered "noise". A reversal of roles.
>
>For example, if you fail to bypass the supply to a reversed biased emitter
>noise generator, you can get other periodic signals from the power supply
>lines. These periodic signals are "noise" since they disturb the gaussian
>distribution of the noise (which is the signal of interest).