[Discuss-gnuradio] 4x4 MIMO with USRP

2007-08-29 Thread Ketan Mandke
Martin, I've been searching through the mailing list for more information about synchronizing two USRP boards to create the transmitter for a 4x4 MIMO node. From what I've found, it seems that this is not currently implemented (see links below for relevant threads). What is the current status of

[Discuss-gnuradio] I/Q output on basic tx

2007-08-29 Thread Vincenzo Pellegrini
Hi everybody, where can I find on the basic tx the I and Q channel outputs ? thanks vincenzo ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Trunk check-in dependency file breakage

2007-08-29 Thread Steven Clark
It seems that this change has broken GRC (complains about non-existent gr.runtime). Josh, is there an ETA on a fix for this? Any short-term work-arounds in the meantime? -Steven On 8/27/07, Johnathan Corgan [EMAIL PROTECTED] wrote: I have recently checked in the updates to the hierarchical

Re: [Discuss-gnuradio] transmitting with 4 antennas

2007-08-29 Thread Martin Dvh
Ketan Mandke wrote: I am part of the Hydra group at UT Austin (http://hydra.ece.utexas.edu). We have developed a MIMO prototype utilizing GNU Radio the USRP board. The physical layer for our design is based on the draft standard for IEEE 802.11n. Our current system is designed to support 2

[Discuss-gnuradio] SWIG/C++ Template Expansion Info

2007-08-29 Thread Michael Dickens
I've always wondered why GNU Radio didn't use C++ templates for gr- blocks (see e.g. the 'gengen' subdirectory in gnuradio-core), since they generally result in much less written code. Might partly be that SWIG only recently (as of 1.3.12 or so) added C++ templates to its bag of tricks?

Re: [Discuss-gnuradio] 4x4 MIMO with USRP

2007-08-29 Thread Eric Blossom
On Wed, Aug 29, 2007 at 09:40:58PM -0500, Ketan Mandke wrote: Martin, Thanks for your response. It is disappointing to hear that the MIMO support for 4 antennas will not be available for some time. Addressing your disappointment: This is a free software project. Code gets written because

Re: [Discuss-gnuradio] SWIG/C++ Template Expansion Info

2007-08-29 Thread Eric Blossom
On Wed, Aug 29, 2007 at 10:48:07PM -0400, Michael Dickens wrote: I've always wondered why GNU Radio didn't use C++ templates for gr- blocks (see e.g. the 'gengen' subdirectory in gnuradio-core), since they generally result in much less written code. Might partly be that SWIG only

Re: [Discuss-gnuradio] SWIG/C++ Template Expansion Info

2007-08-29 Thread Michael Dickens
Another point: Each template type must be individually instantiated in the code. This is not automated in any way except for the SWIG MAGIC stuff, but some parts of it probably could be automated via #define's or something like that. All of this means that instead of defining some code