13 Jun
2005
13 Jun
'05
11:18 a.m.
On Mon, Jun 13, 2005 at 10:49:38PM +1000, Erik de Castro Lopo wrote:
The SNR and bandwith cannot be determined by reading
code.
Measurement is the only option.
It's perfectly possible to calculate this, and it isn't even
very difficult. In the case of a sinc filter, everything is
determined by the window on the complete sinc function that
defines your filter, and the ratio of the two sample rates.
In fact the 'measurement' you describe in the presentation
you referred to is not really a measurement. It is 100%
numerical and there's nothing physical involved. So it's in
fact a long winded way to do the calculation.
A Vulcan could probably do it while reading the source :-)
--
FA