[Discuss-gnuradio] GNURadio over PS3

2007-12-15 Thread Vincenzo Pellegrini
hi everybody, It would be incredibly useful to me if somebody could suggest a link to some resources explaining all that has currently been achieved by using GNURadio over Fedora over PS3, and how much advantage does the current GNURadio release take of the cell processor architecture. Is it

Re: [Discuss-gnuradio] IQ on same or separate channels?

2007-12-15 Thread Eric Blossom
On Fri, Dec 14, 2007 at 10:45:26AM +0100, Uwe Bonnes wrote: Eric == Eric Blossom [EMAIL PROTECTED] writes: Eric On Thu, Dec 13, 2007 at 04:35:51PM -0500, George Nychis wrote: ... Eric I and Q are not on separate channels. They are interleaved, I0, Eric Q0, I1, Q1... This

Re: [Discuss-gnuradio] RuntimeError: audio_alsa_source

2007-12-15 Thread Brook Lin
Firas, I am running gnuradio3.1.1 on 64-bit machine, using Fedora7 Firas A. wrote: What is your OS Type? (Fedora, Ubuntu, .) Firas Brook Lin wrote: Hi Firas, I am using gnuradio3.1.1 Firas A. wrote: What is your OS, gnuradio version ? Firas, Brook Lin wrote:

Re: [Discuss-gnuradio] IQ on same or separate channels?

2007-12-15 Thread George Nychis
That can work too, though I am not sure you're really saving yourself a lot of re-writing. Are you going to put in registers to determine if the data coming back should be real or interleaved complex? Shouldn't it always be interleaved complex? When is real used? - George

Re: [Discuss-gnuradio] RuntimeError: audio_alsa_source

2007-12-15 Thread Firas A.
Hi, use plughw:0,0 as the default audio sink device as explained in : http://www.nabble.com/Audio-Sink-Help-to10675997.html#a10690757 http://www.nabble.com/GNURadio-Example-Suggestions-to2888951.html#a2920566 Firas, Brook Lin wrote: I am running gnuradio3.1.1 on 64-bit machine, using

[Discuss-gnuradio] Re: AGC and PGC

2007-12-15 Thread JALLON Pierre 201932
Dear Aadil and dear all, Thank you for your answer. I work on the opportunist access to UHF bands and I try to detect the channels where a DVB-T (HDTV ?) signal is present (thanks to some correlation methods). I then compare the power of the received signal in the bands where I have

Re: [Discuss-gnuradio] IQ on same or separate channels?

2007-12-15 Thread George Nychis
Brian Padalino wrote: On Dec 14, 2007 2:54 PM, George Nychis [EMAIL PROTECTED] wrote: Shouldn't it always be interleaved complex? When is real used? I think single or vestigial sideband modulations use only the real component. More info here:

Re: [Discuss-gnuradio] IQ on same or separate channels?

2007-12-15 Thread Brian Padalino
On Dec 14, 2007 12:51 PM, George Nychis [EMAIL PROTECTED] wrote: Taking a look at how the legacy code does it... http://gnuradio.org/trac/browser/gnuradio/branches/developers/gnychis/inband/usrp/fpga/sdr_lib/rx_buffer.v#L137 What do you think about adopting this method? It's using a 16-bit

Re: [Discuss-gnuradio] IQ on same or separate channels?

2007-12-15 Thread Eric Blossom
On Fri, Dec 14, 2007 at 02:17:19AM -0500, George Nychis wrote: I and Q are not on separate channels. They are interleaved, I0, Q0, I1, Q1... Are we sure of this? Based on Brian's pointer to here:

Re: [Discuss-gnuradio] IQ on same or separate channels?

2007-12-15 Thread Brian Padalino
On Dec 14, 2007 2:54 PM, George Nychis [EMAIL PROTECTED] wrote: Shouldn't it always be interleaved complex? When is real used? I think single or vestigial sideband modulations use only the real component. More info here: http://en.wikipedia.org/wiki/Single-sideband_modulation Brian