Re: [Discuss-gnuradio] Rayleigh fading simulator

2014-03-07 Thread Nasi
Hi Richard, Thanks a lot! Statistical validation can be correct for different Doppler implementations in general. However the way they add Doppler shifts is different. I took your code and implemented in matlab and compared with jakes model of matlab's rayleighchan function. There is a big m

Re: [Discuss-gnuradio] Rayleigh fading simulator

2014-03-05 Thread Richard Clarke
Hi Nasi, when I checked the fading models supplied in GNU Radio 3.7 the other week they seemed to be generating nasty glitches in their output. You could instead take a look at 'my' custom block for doing simple single path configurable doppler Rayleigh fading. The output of this has been statisti

Re: [Discuss-gnuradio] Rayleigh fading simulator

2014-03-02 Thread Nasi
Martin, it is so simple, I try to explain again: my question is how you add Doppler to the channel (the code)? Different people add it in a different way like using FIR or IIR filters. So, I am wondering if you used IIR filter or FIR. If you know of course, how you coded it? Воскресенье,

Re: [Discuss-gnuradio] Rayleigh fading simulator

2014-03-02 Thread Martin Braun
On 03/01/2014 04:35 PM, Nasi wrote: > Helo all, > > I need your help for simulation of the Rayleigh fading. > I know that I can use GNURADIO channel models, but I need to know how > they simulated. > For example I am looking into the 'fading_model_impl.cc' in channel > models of GNURADIO. > Can

[Discuss-gnuradio] Rayleigh fading simulator

2014-03-01 Thread Nasi
Helo all, I need your help for simulation of the Rayleigh fading. I know that I can use GNURADIO channel models, but I need to know how they simulated.  For example I am looking into the 'fading_model_impl.cc' in channel models of GNURADIO.  Can someone tell me how this is simulated? I heard s