Re: [Discuss-gnuradio] Contribution: ofdm system

2007-10-22 Thread Lin HUANG
Hello all, Our team also implemented a MIMO-OFDM platform in the past few months. The system parameters are like LTE. But it is not fully in GNU Radio framework, so it's not suitable to be imported. One paper introducing this platform will be published in SDR07 Tech Conference. Unfortunately I can

[Discuss-gnuradio] enabling RX-A & RX-B on single daughterboard

2007-10-22 Thread George Nychis
Hey all, On the basic daughterboards, if I connect two coax cables to TX-A and TX-B on a single daughterboard and transmit, I can view the transmission using an oscope on both connectors. In other words, it doesn't matter which of the two ports I connect to. However, if I fire up the GNU Ra

[Discuss-gnuradio] using usrp_fft.py result

2007-10-22 Thread meggahertz
Is there a way to save the output data of usrp_fft.py? For example If I want to feed the output of the usrp_fft.py (i. e. the data it plots) into a variable every unit time. How can I do that? -- View this message in context: http://www.nabble.com/using-usrp_fft.py-result-tf4674883.html#a133565

[Discuss-gnuradio] GNU Radio 3.1.0 Release Tarballs Available

2007-10-22 Thread Johnathan Corgan
GNU Radio stable release 3.1.0 is now available for download: http://gnuradio.org/releases/gnuradio/gnuradio-3.1.0.tar.gz http://gnuradio.org/releases/gnuradio/gr-howto-write-a-block-3.1.0.tar.gz Binary installation packages for Ubuntu 32-bit and 64-bit systems are documented at: http://gnuradio

[Discuss-gnuradio] BBN module

2007-10-22 Thread Mohammad Hamed Firooz
Hi everyone, I am going to use BBN code on IEEE802.11b. But these codes need to import a module named bbn from gnuradio package. My gnuradio has not this module. Where can I find it and how I can add it to my gnuradio package. Thanks hamed __

Re: [Discuss-gnuradio] Mux settings...

2007-10-22 Thread Eric Blossom
On Mon, Oct 22, 2007 at 05:59:58PM -0700, Hans Glitsch wrote: > Hello, > > I may be having similar problems. I'm using 2 basic RX boards and I want > to receive four complex signals. I seem to be losing the complex part of > the first signal. I was using a mux of 0xf3f2f1f0, and after seeing

Re: [Discuss-gnuradio] Mux settings...

2007-10-22 Thread Hans Glitsch
Hello, I may be having similar problems. I'm using 2 basic RX boards and I want to receive four complex signals. I seem to be losing the complex part of the first signal. I was using a mux of 0xf3f2f1f0, and after seeing your message, I tried 0x32103210. Both of them show the same problem

Re: [Discuss-gnuradio] the in-band timestamp

2007-10-22 Thread Eric Blossom
On Mon, Oct 22, 2007 at 07:40:40PM -0400, George Nychis wrote: > Okay, Brian brought this up to me in an off-list discussion that we > think needs to be discussed about the current timestamp generation. > > Referring to: > http://gnuradio.org/trac/browser/gnuradio/branches/features/inband-usb/usr

RE: [Discuss-gnuradio] Mux settings...

2007-10-22 Thread Jared Jensen
Thanks. That means I have issues. :) I am trying to use 2 channels, with a mux setting of 0x32103210. I have a DBSRX on RXA and another one on RXB. I have no TX. When I do a... nRead = myDev->read(arr, USB_BUF_SIZE, &bOverrun); I get perfect data from one channel. (i.e. I_a = arr[0], Q_

Re: [Discuss-gnuradio] Mux settings...

2007-10-22 Thread Eric Blossom
On Mon, Oct 22, 2007 at 05:13:33PM -0400, Jared Jensen wrote: > > What are the proper mux settings for one DBSRX in RXA and one DBSRX > in RXB? When I used a single DBSRX in RXA 0x0010 worked well. > But now I want Channel 0 to be RXA, and Channel 1 to be RXB both of > which are I and Q, and

Re: [Discuss-gnuradio] GNU Radio Release 3.1.0rc0 now available; New Debian package repository

2007-10-22 Thread Eric Blossom
On Sun, Oct 21, 2007 at 01:16:00PM -0700, Jan Schiefer wrote: > Oh, and one more question: I noticed a new dependency on numpy. I have > lost track of this issue, is Numeric now no longer required? > > Thanks, > Jan Correct. The Numeric dependency has been replace by a numpy dependency. Eric

Re: [Discuss-gnuradio] running a gmsk test

2007-10-22 Thread Eric Blossom
On Sun, Oct 21, 2007 at 08:47:59AM -0400, George Nychis wrote: > I'm not sure where the gmsk test went in GNU Radio, I tried following > the log and commits. So, I grabbed a gmsk test from here: > http://noether.uoregon.edu/~jl/gmsk/ > > Just trying to run something simple, I run it from the blk

Re: [Discuss-gnuradio] the in-band timestamp

2007-10-22 Thread Dan Halperin
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 My 2c: I imagine that futuristic uses of the USRP (such as the ones for which you're explicitly redo-ing the stack) involve dynamically changing the decimation on the fly. Drive it off the absolute clock to keep some sense of meaning. - -Dan George N

[Discuss-gnuradio] the in-band timestamp

2007-10-22 Thread George Nychis
Okay, Brian brought this up to me in an off-list discussion that we think needs to be discussed about the current timestamp generation. Referring to: http://gnuradio.org/trac/browser/gnuradio/branches/features/inband-usb/usrp/fpga/inband_lib/rx_buffer_inband.v#L37 The current timestamp runs at

Re: [Discuss-gnuradio] Multi-channel I/Q buffer format...

2007-10-22 Thread Eric Blossom
On Mon, Oct 22, 2007 at 02:23:44PM -0400, Jared Jensen wrote: > > I'm getting some strange behavior when I use two DBSRX boards with my USRP. > I just wanted to vet some of my assumptions as I'm debugging. I'm assuming > that the data comes across the USB bus as follows > > I_A/Q_A/I_B/Q_B/I_

Re: [Discuss-gnuradio] ask for help about installing gnu-radio

2007-10-22 Thread George Nychis
Give a 'sudo ldconfig' a try. - George [EMAIL PROTECTED] wrote: Hello, After installing the development package of gnu-radio, I got the following ImportError when running qa_cvsd_vocoder.py in gr-cvsd-vocoder. Actually, I met similar problems of running python code in other folders. But the li

Re: [Discuss-gnuradio] Has Anyone Used Purify with GNU Radio?

2007-10-22 Thread Eric Blossom
On Fri, Oct 19, 2007 at 09:39:10PM +0800, Jeremy Chew wrote: > > Does anyone have experience getting Purify working with GNU Radio, or is > anyone able to shed some light? > This is a free software list. We don't provide customer support for proprietary software. Eric

[Discuss-gnuradio] ask for help about installing gnu-radio

2007-10-22 Thread nhe
Hello, After installing the development package of gnu-radio, I got the following ImportError when running qa_cvsd_vocoder.py in gr-cvsd-vocoder. Actually, I met similar problems of running python code in other folders. But the libgromnithread.so actually exists the /usr/local/lib. I had added thi

[Discuss-gnuradio] Mux settings...

2007-10-22 Thread Jared Jensen
What are the proper mux settings for one DBSRX in RXA and one DBSRX in RXB? When I used a single DBSRX in RXA 0x0010 worked well. But now I want Channel 0 to be RXA, and Channel 1 to be RXB both of which are I and Q, and not swapped. So far anything other than 0x32103210 or 0x0010

RE: [Discuss-gnuradio] Decimate by 2 possible?

2007-10-22 Thread Nirali Patel
Brian, Thanks for your response. > What is your target symbol rate? My target symbol rate is 10.76 MHZ (8-vsb ATSC symbol rate). I need only 2x of this symbol rate, i.e 21.52 Mhz to do down stream processing. >Is there a reason you want to play directly with 32Msps? Only for troubleshooti

[Discuss-gnuradio] Re: benchmark_ofdm_rx not working

2007-10-22 Thread Archana Ragothaman
On 10/22/07, [EMAIL PROTECTED] < [EMAIL PROTECTED]> wrote: > > Send Discuss-gnuradio mailing list submissions to > discuss-gnuradio@gnu.org > > -- > > Message: 6 > Date: Mon, 22 Oct 2007 10:43:50 +0100 > From: Tom Rondeau <[EMAIL PROTECTED]> > Subject: Re: [Discu

Re: [Discuss-gnuradio] Decimate by 2 possible?

2007-10-22 Thread Brian Padalino
On 10/22/07, Nirali Patel <[EMAIL PROTECTED]> wrote: > Hi, > I am using the TV_RX and USRP to capture the 64 Msps data from the A/D > converter and send that to another downstream board for processing. I am > connecting the signal from the ADC to the debug IO pins of the FPGA to get > to the 16 io_

[Discuss-gnuradio] Multi-channel I/Q buffer format...

2007-10-22 Thread Jared Jensen
I'm getting some strange behavior when I use two DBSRX boards with my USRP. I just wanted to vet some of my assumptions as I'm debugging. I'm assuming that the data comes across the USB bus as follows I_A/Q_A/I_B/Q_B/I_A/Q_A/ Is that correct? i.e. do we get I/Q of one board followed by I/Q

[Discuss-gnuradio] Decimate by 2 possible?

2007-10-22 Thread Nirali Patel
Hi, I am using the TV_RX and USRP to capture the 64 Msps data from the A/D converter and send that to another downstream board for processing. I am connecting the signal from the ADC to the debug IO pins of the FPGA to get to the 16 io_rx[] pins of Basic RX. However, my board-to-board interconn

Re: [Discuss-gnuradio] WiFi b/g

2007-10-22 Thread George Nychis
Hi Hamed, Yes, BBN coded an 802.11 receiver. I have personally not gotten around to running it yet, but just from reading the list others have been able to decode most 1 or 2Mbps packets, and nothing above that. This is all all the physical layer, no MAC functionality. Here's a good first

[Discuss-gnuradio] WiFi b/g

2007-10-22 Thread Mohammad Hamed Firooz
Hi Has any Wifi (802.11) b or g receiver model been implemented in GNU Radio? thanks hamed ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] benchmark_ofdm_rx not working

2007-10-22 Thread Tom Rondeau
Archana Ragothaman wrote: Hello, I am using two USRPs rev 4 and two RFX2400. I am basically trying to make the USRPs communicate with each other using the benchmark_ofdm_tx.py and benchmark_ofdm_rx.py scripts. The commands I am executing are ./benchmark_ofdm_tx.py -f2.4e9 -T A (at one USRP

[Discuss-gnuradio] file transmitter

2007-10-22 Thread Brett L. Trotter
I think this has been answered in the past, but I couldn't find the answer- is there a pre-done script to transmit a raw data file directly as samples? ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/dis