Detecting AC signal on top of a DC with a CCD (non-intensified)?

[Tom Droege]

Posted to CCD-world:
-+-+-+-
Scott,

Well the first thing that comes to mind is to have a second probe that sees
only background and not the signal and subtract it.  One never does this
very well, so you might gain a factor of 5 or so.  I might have better
suggestions if I knew more what you are trying to do.  It is always tough
to remove such background once it is there.  So best to think hard about
how the detector is designed to get a better signal from the start.  

Tom Droege

At 05:04 PM 4/1/99 -0800, you wrote:
>Posted to CCD-world:
>-+-+-+-
>Hello all:
>
>I have somewhat of a dilemma I am trying to resolve.
>I have an optical sensor application in which I am trying

-+-+-+-
For information about CCD-world, send email to owner-CCD-world at cfht.hawaii.edu.