Software for the processing of signals received via DVB-S/S2 card

[Amy]

Hi,

I am new here. I am working on a satellite project, and I was wondering if there is any software on the GNU Radio platform that can be used to process signals received via DVB-S/S2 card? For example, to send the received stream to be displayed on a computer? Or to send the received (video) stream to be processed further (e.g. in the frequency domain)?

Thanks in advance.

Amy

[Geoff Mather]

It sounds like you have the Transport Stream (TS), which you wish to unwrap, this might be several several Sub-Streams or a multiplex of several sources.
Do a search for display decode Transport stream there are several bits of software available like dvbsnoop http://dvbsnoop.sourceforge.net/

[Ron Senykoff]

Surprised I hadn't heard of this program before. Any of us in the US
should be able to receive local HDTV in transport stream. I guess the
question is to what use? I guess you could detect when a station has
changed transmitters for maintenance and automate rotating your
antenna hah.

-Ron / KB1UMH

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[Paul Warren]

In general, DVB-S cards and dongles will output the MPEG transport stream via the driver to the video playing software, usually some sort of TV App style program that comes with the card. I've used VLC and mplayer (on linux) to play them.

DVB-S via SDR is possible, and has been done:

http://www.edmundtse.com/2010/11/16/software-radio-for-satellite-tv-on-your-computer/

some code at

https://github.com/EdmundTse/gr-dvb

and a reddit thread with some discussion at:

http://www.reddit.com/r/RTLSDR/comments/wt9ip/gnuradio_dvbs_blocks/

Basically, it's tricky, and the RTL-SDR dongles don't have enough bandwidth to capture the full stream.  A USRP or similar would though.

Hope that helps :)

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Paul Warren

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Paul Warren
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[dummy...@gmail.com]

If RTL-SDR has a bandwidth issue, could a DVB-S/S2 card combined with SDR solves the problem? Both DVB-S/S2 card and USRP output a transport layer stream, and DVB-S/S2 card has been used in PC for receiving satellite TV signals for a long time with no known issues related to the Bandwidth.