Re: [Discuss-gnuradio] OFDM / DAB demodulation

[Jens Elsner]

Well - you can download the standard at ETSI. It's open and published.
I don't know about the US.

On Fri, Mar 31, 2006 at 05:46:49PM -0500, Charles Swiger wrote:
> On Fri, 2006-03-31 at 17:08 +0200, Jens Elsner wrote:
> 
> > I sampled a local DAB radio station at 225.648 MHz, decimation factor 32
> > with the USRP/tvrx.
> > 
> > DAB is using COFDM with pi/4-DPSK on 1536 subcarriers (see www.etsi.com, 
> > standard
> > EN300401 for details). I wrote some Matlab code to demodulate the
> > signal. The data is resampled from 2 MHz (URSP) to 2.048 MHz (DAB Standard).
> > A frequency offset is compensated manually. 
> > 
> 
> Side issue - do I understand this correctly, that Europe uses an open
> published DAB standard while those near me in the US are not
> freely published (Ibiquity, IBOC, hdradio, etc) ??
> 
> --Chuck
> 
> 
> 
> 
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