Area of Bandlimited Signal

<lathe_biosas@hotmail.com> wrote in message
news:f3fb6877.0410111118.366bfd1@posting.google.com...
> "Mike Yarwood" <mpyarwood@btopenworld.com> wrote in message news:
>
> > I only have a very vague idea what you mean by finding the area  and
suspect
> > that you should be looking for the average area in some unit of time.
>
> Hi Mike
>
> Thanks for answering.
>
> The signal x(t) is a signal with Fourier transform X(f) such that
> X(f)=0 |f|>=W
> The signal x(t) is bandlimited to [-W,W]
> The area is defined as:
>
> Area=\int_{-infty}^{infty} x(t)dt
>
> What is the slowest possible rate at which we can sample x(t) and
> still be able to find the Area?
> How do we find the Area from the samples?
>
> Best Regards

Sorry Lathe - I forgot to ask if you were sure what you meant by the area of
the signal.  Most times people seem to want the energy or the energy per
unit time (power or  energy per bit or something)  in which case you will
most probably need to look at the area of the square of your signal. Again
best of luck - Mike