MATLAB/Windows and the USRP

GNU Radio
1

Hello all,
I just received my USRP and I have successfully installed GNURadio on
my
Linux box. I am just starting to dabble with the code a bit. I am very
much a Windows/MATLAB developer, so I think I could be far more
productive
if I could just stream the baseband waveforms to and from the USRP from
MATLAB. I see on Ettus’s site that some are working on a MATLAB
interface.
I would like to contribute to this effort. Does anyone have a good
starting
point? Are there any windows drivers (dll’s or source)?

Btw, I tried installing the binaries from www.olifantasia.com and the
code
did not like my USRP revision?? I have also searched the list and tried
emailing people directly, but without any responses.

I would appreciate any help or suggestions.

Thanks,
Kevin

(p.s. I apologize if this gets double posted. I had trouble using a
third
party forum)

2

2007/4/19, Kevin Rudd (Contractor) [email protected]:

Hello all,
I just received my USRP and I have successfully installed GNURadio on my
Linux box. I am just starting to dabble with the code a bit. I am very
much a Windows/MATLAB developer, so I think I could be far more productive
if I could just stream the baseband waveforms to and from the USRP from
MATLAB. I see on Ettus’s site that some are working on a MATLAB interface.
I would like to contribute to this effort. Does anyone have a good starting
point? Are there any windows drivers (dll’s or source)?

Hi,

If you want to do off-line analysis in matlab, python or octave, a
solution that works for me is to just record a suitable amount of data
with usrp_rx_cfile.py, and thereafter do whatever I like in my
high-level language of choice. It might not be the best solution if
you want to tweak USRP parameters from Matlab, but it works.

–
Trond D.

3

Kevin Rudd (Contractor) wrote:

did not like my USRP revision?? I have also searched the list and tried
emailing people directly, but without any responses.
The binaries are a bit outdated.
I haven’t found the time to make new ones.
(It is quite a long process updating and building the windows
installers)

I will probably make some new ones someday, but don’t pin me down on a
date.
You could build from source yourself on mingw or cygwin on windows.
More people are doing this.

Greetings,
Martin

4

I’ve just recently been using TCP socket connections to send data to/
from MATLAB. you could use file_descriptor_sink[source] block in GNU
Radio to push data to/from the USRP. The sockets I have been using
are at

http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?
objectId=345

I have done work with file_descriptor_sink[source] and work with
sockets in MATLAB, but not together =).

David

5

Kevin Rudd (Contractor) wrote:

Hello all,
I just received my USRP and I have successfully installed GNURadio on
my
Linux box. I am just starting to dabble with the code a bit. I am very
much a Windows/MATLAB developer, so I think I could be far more
productive
if I could just stream the baseband waveforms to and from the USRP from
MATLAB. I see on Ettus’s site that some are working on a MATLAB
interface.
I would like to contribute to this effort. Does anyone have a good
starting
point? Are there any windows drivers (dll’s or source)?

Btw, I tried installing the binaries from www.olifantasia.com and the
code
did not like my USRP revision?? I have also searched the list and tried
emailing people directly, but without any responses.

I would appreciate any help or suggestions.

Thanks,
Kevin

(p.s. I apologize if this gets double posted. I had trouble using a
third
party forum)

Hello,

with some friends we have developped an USRP interface to matlab. See:

Examples of use are given:
tools4sdr.com (simple
communications)
tools4sdr.com (channel IR
estimation)
tools4sdr.com (baudrate estimation)

Pierre

6

Hi Kevin,

I think the capabilities that we are developing at the moment are
related. What we soon hope to achieve is a USRP server (Linux box
running GNU Radio with a USRP), servicing clients (only one at this
stage) that are running Windows/Matlab. Communications occur over
TCP/IP. The server will recognise a range of commands such as
“set_rf_tx_freq”, “set_rf_tx_power”, “play_file” etc. The end results
will be the ability for the remote client machine to generate waveforms
and control the USRP from within Matlab. At this stage server feedback
to the client (other than error reporting) is not required. I think
though, that what you want is Windows/Matlab/GNU Radio/USRP on the same
machine.

(P.S, sorry if I have screwed up the “reply” process, not entirely sure
if I’m doing it right)

Jonas

=======================================================================
This email, including any attachments, is only for the intended
addressee. It is subject to copyright, is confidential and may be
the subject of legal or other privilege, none of which is waived or
lost by reason of this transmission.
If the receiver is not the intended addressee, please accept our
apologies, notify us by return, delete all copies and perform no
other act on the email.
Unfortunately, we cannot warrant that the email has not been
altered or corrupted during transmission.