On Fri, May 9, 2008 at 9:32 AM, Bastian Preindl <[EMAIL PROTECTED]> wrote:
> Unfortunately I'm not (yet) aware of the preprocessing (except for
> downmodulation to baseband) taking place within the (ham) radio - what
> _could_ happen to the signal? And what would be the optimal precondition for
>
Hi Jonathan,
many thanks for the detailed explanation!
Johnathan Corgan wrote:
That entirely depends on what has already happened to the signal prior
to it arriving at the sound card.
Unfortunately I'm not (yet) aware of the preprocessing (except for
downmodulation to baseband) taking pl
Bastian Preindl wrote:
> That are very good news for me! I'm aware about the relations between
> SNR and BER - I just wonder about the several ways to estimate the SNR
> in GnuRadio. That's exactly the information I lack of - do you have any
> documentation/examples/sources for how to accomplish t
Dear Jonathan,
If you use the USRP, you will obtain a complex baseband representation
of your satellite signal. From this, you will need to implement a
demodulator for the particular signal involved. From the output of
As far as I know there already exist demodulators for (A)FSK, BPSK and
On Fri, May 9, 2008 at 2:22 AM, Bastian Preindl <[EMAIL PROTECTED]> wrote:
> As we're not the operator of the satellites, it is impossible to know
> the data we'll receive beforehand and make a comparison afterwards to
> calculate the bit error rate. So I have to count on information I can
> gain
Hi,
I'm a project member of the global education network for satellite
operations (Genso, www.genso.org) and currently working on gaining
comparable link quality information when having an RX communication with
satellites.
As we'll probably support GnuRadio on a broad base (both using a USRP or
