Re: [Discuss-gnuradio] Editing benchmark_rx.py for spectrum access

2009-08-03 Thread Dan Rosenqvist
Ali Siddiqi wrote: > > Hi, > Did the flowgraph of the code (in which you added the timeout) involved > receive_path??? > > Regards, > Ali > > On Mon, Aug 3, 2009 at 11:21 AM, Dan Rosenqvist wrote: > >> >> >> >> Umair Nasir wrote: >&

Re: [Discuss-gnuradio] Tunnel and sense in the same USRP device

2009-08-02 Thread Dan Rosenqvist
曾繁勛 wrote: > > Hi All, > > Here is my experiment environment: > Host A: one USRP1 + two RFX2400 > Host B: one USRP1 + one RFX2400 > Both of these two hosts, I am using the gnuradio trunk > version and fedora core 7. > Goal: tunnel

Re: [Discuss-gnuradio] Editing benchmark_rx.py for spectrum access

2009-08-02 Thread Dan Rosenqvist
Umair Nasir wrote: > > Hi all, > > This question is asked a number of times. And I believe it shouldn't be > that > tough. Somebody explain where to put this logic in benchmark_rx.py > > If no data received > set freq to freq number 2 > else > stay on the current freq

Re: [Discuss-gnuradio] Getting the max amplitude of an FFT plot (FFT sink)

2009-06-29 Thread Dan Rosenqvist
Anthony Hsu wrote: > > Hi, > > I am trying to write a simple program that changes the TX frequency in > response to some RX stimulus. I want the TX frequency to change if any > part > of the RX signal in a band I am monitoring exceeds a threshold amplitude. > > My problem is I don't know how

Re: [Discuss-gnuradio] Wideband Spectrum Analyzer

2009-06-23 Thread Dan Rosenqvist
shesh wrote: > > Firas, > have to written a detailed explanation about "usrp_spectrum_sense.py" ? I > am unable to find it. Please let us know the link for the same... > > Shesh > > http://www.nabble.com/Some-usrp_spectrum_sense.py-code-Explanation-td21209623.html#a21209623 -- View this m

Re: [Discuss-gnuradio] Spectral Estimation Toolbox compile error

2009-06-22 Thread Dan Rosenqvist
Martin Braun-3 wrote: > > On Mon, Jun 22, 2009 at 02:27:38AM -0700, Dan Rosenqvist wrote: >> >> Hi, >> >> I get the following error when compiling the spectral estimation toolbox >> (https://www.cgran.org/wiki/SpecEst): > > Hi Dan and rest, > &

[Discuss-gnuradio] Spectral Estimation Toolbox compile error

2009-06-22 Thread Dan Rosenqvist
Hi, I get the following error when compiling the spectral estimation toolbox (https://www.cgran.org/wiki/SpecEst): [...@exjobb2 gr-specest]# make make all-recursive make[1]: Entering directory `/opt/gnuradio-3.1.3/gr-specest' Making all in config make[2]: Entering directory `/opt/gnuradio-3.1.3

[Discuss-gnuradio] Problem with spectrum sensing using cyclostationary features

2009-06-09 Thread Dan Rosenqvist
Hi, I'm currently working on a Cyclostationary Feature Detector (CFD), used for spectrum sensing in a cognitive radio system, as a part of my thesis project. I've implemented a working prototype in MATLAB and I now want to port it to GNU Radio/USRP1, however I ran into problems. The algorithm I