
From:  Tom Rondeau 
Subject:  Re: [Discussgnuradio] Impulse response in DVBT, someboby knows how to calculate? 
Date:  Sun, 2 Oct 2016 19:03:43 0400 
> ______________________________On 10/01/2016 04:46 PM, Juan Antonio wrote:
> Hello, someone would know how to calculate the impulse response of a
> COFDM, DVBT channel with an SDR device?
>
> Thank you in advance
>
>
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An inverse DFT on a sinc function in the frequency domain yields a sine
function in the time domain. And a DFT on the sine function in the time
domain yields a sinc function in the frequency domain.
I presume the "C" in COFDM means to chop up the bandwidth into carriers
such that the sinc function in one channel hits nulls in the other
channels.
Piece of cake in theory.
There's a grdvbt project on github
https://github.com/BogdanDIA/grdvbt
I don't know anything about it  I don't even know if it works.
 Cinaed
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