[amsat-bb] Re: SSTV Algorithms?
simon at hb9drv.ch
Fri Oct 17 06:20:33 PDT 2008
Briefly - the SSTV developers have their own algorithms more-or-less, what
we are mostly interested in is the frequency at a point in time. Simplifying
things further - we need to know frequency for each point in the line, the
filtering we use to pre-process the incoming signal removes noise etc. After
all - it's an analogue specification.
There would be no advantage to sampling at 48kHz instead of 8kHz, in fact it
would use a lot more CPU to run the filters.
The filtering we use is very standard stuff, SSTV is a nice and simple
concept, the big problem is combating noise, fading and multi-path
Simon Brown, HB9DRV
----- Original Message -----
From: "Curt Nixon" <cptcurt at flash.net>
> I wasn't so interested in the actual SSTV algorithms as I was in seeing
> if there is any visible difference in the result of different algorithm
> use--or is everyone using the same decoding kernel?
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