RE: [Discuss-gnuradio] OFDM - on air?

2007-02-28 Thread Dominik Auras
Hi! Just curious on the channel transfer function, I did some modification on the ofdm simulation to see the magnitude and the argument. I am inverting your equalizer coefficients (and actually scaling them down). The coefficients of the region of interest in frequency domain are sent out through

RE: [Discuss-gnuradio] OFDM - on air?

2007-02-28 Thread Dominik Auras
Hi! So there is no obvious fault, e.g. that I set the wrong decimation/interpolation rate? (the samplerate should be 400kS/s?) I just compared "tx_ofdm.dat", recorded in your simulation, to my recorded file. Therefore I modified usrp_fft.py. In tx_ofdm.dat, it shows a large frequency band in use,

RE: [Discuss-gnuradio] OFDM - on air?

2007-02-27 Thread Tom Rondeau
> -Original Message- > From: [EMAIL PROTECTED] [mailto:discuss- > [EMAIL PROTECTED] On Behalf Of Dominik Auras > Sent: Tuesday, February 27, 2007 10:09 AM > To: discuss-gnuradio@gnu.org > Subject: [Discuss-gnuradio] OFDM - on air? > > Hello, > > I'm currently trying to make your ofdm sim