Here is a patch that allows a user to define when the stream start
command is issued. I use this to precisely time the beginning of the
stream. The current implementation issues the stream start command 0.1
seconds after start() is called, which is not that deterministic.
I'm not sure this is opti
There is a Viterbi encoder/decoder block called 'trellis' and it handles
hard and soft decoding. What you need to do is find the generating
polynomial or convolutional code that matches your needs.
--Colby
On Fri, Jun 10, 2011 at 1:27 PM, Shen Wenbo wrote:
> Hi All,
>
> Does GNURadio the error c
Hi all,
I have a USRP N210 and DBSRX2 daughter board, running on Ubuntu 10.04, and I
would like to get the L1 signal by
using Gnuradio Companion to draw a GPS receiver flow graph (I have a GPS
Antenna), and I just need to get the IF signal into File
Sink to get the .dat so I can use MATLAB to de
OK, thanks Colby
On Sat, Jun 11, 2011 at 11:46 AM, Colby Boyer wrote:
> There is a Viterbi encoder/decoder block called 'trellis' and it handles
> hard and soft decoding. What you need to do is find the generating
> polynomial or convolutional code that matches your needs.
>
> --Colby
>
> On Fri
Hi All,
As you all know, VCM is short for Variable Coded Modulation.
As I have read on your forum, the new DVBS-2 NOAAPORT transmission is variable.
So far I have noted that users use 8PSK demodulation and FEC?.
FEC?, due to users use AUTO most likely (search all HW supported FEC and lock
when
I notice that in some directories (eg, gr-noaa, gr-pager) there is a grc
subdirectory with the corresponding definitions, while for others the
definitions are in the grc/blocks directory.
Is there a specific reason for one vs the other option?
Which one is the preferred method?
I want to add some
On 06/11/2011 07:16 PM, Achilleas Anastasopoulos wrote:
> I notice that in some directories (eg, gr-noaa, gr-pager) there is a grc
> subdirectory with the corresponding definitions, while for others the
> definitions are in the grc/blocks directory.
>
I did the cmake'ification of gr-trellis aft
On Sat, Jun 11, 2011 at 07:40:54PM +0300, Patrik Tast wrote:
> Hi All,
>
> As you all know, VCM is short for Variable Coded Modulation.
>
> As I have read on your forum, the new DVBS-2 NOAAPORT transmission is
> variable.
> So far I have noted that users use 8PSK demodulation and FEC?.
> FEC?,
