Sorry to dig up an old thread, but does anyone know of anyone who's
implemented a polyphase filter bank on a USRP FPGA?
John
On Thu, May 9, 2013 at 12:02 AM, Marcus D. Leech wrote:
> Or am I wrong that the resource is in the computer and not in the USRP?
>
>
>
> LD
>
>
>
> It's all in the co
Hey Guys,
I wrote a blind turbo equaliser for LDPC encoded data a few years ago in
GNU Radio, the code is probably pretty horrific, and it wasn't optimised
very well, but it worked as a proof on concept, I could dig out the code if
anyone was interested?
John
On Sat, Mar 1, 2014 at 10:33 AM, Ja
Hi,
What's the process by which enums are added to the Python namespace via
SWIG in gnuradio? I mean in gr_firdes, the following are added to the
gr.firdes namespace in Python:
enum win_type {
WIN_HAMMING = 0,// max attenuation 53 dB
WIN_HANN = 1,// max attenuation 44 dB
WIN
Hey guys,
I wonder whether anyone has done this before/can help me out. I'm looking
to compile GNURadio with all static libraries, so that there are zero .so
dependencies. I've been playing around with CMake, but it looks like the
linker order is wrong for compiling against static libraries:
What
Use a different version of boost for the older Gnuradio builds, I used
boost-1.40 to compile 3.4.0 against which worked.
On Tue, Feb 12, 2013 at 4:31 PM, Zulfiqar Khan wrote:
> Hello,
>
> I am trying to build gnuradio 3.4.1 on ubuntu for usrp1 but it gives me
> the following error when I run the
Cool thanks, I guess that's exposed in the Python scripts by
usrp_source.set_bandwidth then?
John
On Wed, Feb 13, 2013 at 5:53 PM, wrote:
> **
>
> On 13 Feb 2013 12:51, John Wilson wrote:
>
> Hi guys,
>
> Another quick (couple of) question(s);
> - The DBSRX2 has
ilter around what I set as rf_freq?
- Does GNU radio provide an interface to manually change the daughterboard
channel filter?
Cheers,
John
On Wed, Feb 13, 2013 at 8:54 AM, John Wilson wrote:
> Hey yes I had that bit working okay (found that page before), I was just
> wondering how to actu
Hi Ed,
I've been doing the same recently with gnuradio-3.4 on ubuntu 12.04 x64, So
I'm guessing it's pretty similar.
Anyway, copying and pasting some notes I made which should hopefully help
you, there were a few little horrors in there!
NB The boost version is probably not that important so lon
Hi,
I'm wondering whether it's possible/how to use a USRP1 with 2x DBSRX boards
to generate 4 separate streams via the 4rx usrp1 firmware. The required
channels will be within the front end bandwidth of the DBSRX2.
At the moment I'm using a subdev spec of 'A:0 A:0 B:0 B:0' which I assume
runs the
Hey guys,
I've got a quick question on a project I'm currently working on which is
scanning a range of frequencies using GNU radio and the USRP-N210 with the
SBX daughterboard.
Basically when I take the FFT of the wgn receiver noise, at certain sample
rates (e.g. 5Msps) the spectrum output is rou
Hey,
This may seem like a dumb suggestion but have you tried running the scripts
from the command line to see why they're failing? Start with something
simple like dial_tone.py (from the python/audio subfolder in
gnuradio-examples). I've never used minGW, but I had no problems getting
GNURadio ins
Hello,
I'm just wondering, what happens within block code when whatever shuts down
the graph after the gr_top_block.wait() executes? Is there condition
detectable from within a block which could be used to run some code when the
block pauses? I want to copy the remaining input buffer into an inter
lock now.
>
> Thanks,
> Mahboob
>
> --
> *From:* John Wilson [johnmwilso...@gmail.com]
> *Sent:* 02 August 2010 02:33
> *To:* Rahman, Muhammad Mahboob Ur
> *Cc:* discuss-gnuradio
> *Subject:* Re: [Discuss-gnuradio] PLL and VCO questions
>
> Hey,
>
> Y
Hey,
You can't make a feedback system in the Python flowgraph. You can, however
use feedback in an individual signal processing block. If you need to use a
PLL look at the Costas loop block which locks to RF signals with complex
baseband components eg. QPSK, SSB etc.
John
On Mon, Aug 2, 2010 at
On Thu, Jul 22, 2010 at 6:48 PM, Eric Blossom wrote:
> On Thu, Jul 22, 2010 at 05:13:09PM +0100, John Wilson wrote:
> > So does no one have any idea about this? It doesn't seem like it should
> be
> > too difficult to solve, I've worked around the problem for the
>
e and I'm
currently pretty busy desperately trying to finish off my thesis!
Cheers,
John
On Tue, Jul 20, 2010 at 7:55 PM, John Wilson wrote:
> Hello,
>
> I've got a problem with the FIR filters in GNU radio. Basically, at the
> moment I'm using it as a platform to r
Hello,
I've got a problem with the FIR filters in GNU radio. Basically, at the
moment I'm using it as a platform to run some simulations on (as I've
already written a load of code on it for implementing a digital radio), and
one of the tests I'm doing is trying to find the BER through an equaliser
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