Quote:
Originally Posted by Shiraz
but the little bit of noise that is left is now close to being vanishingly small compared to detected signal - some lucky imaging systems have sensors with such low noise that they can count the arrival of individual photons and that process has no electronic noise at all (all that is left is the shot noise in the signal). The new CMOS chips are not in that league, but they aren't far off.
|
Sorry , - I don't see that at all.
Even a piece of wire has noise in it.
White noise generators use the noise amplified from across a resistor.