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Re: [Discuss-gnuradio] Impulse response in DVB-T, someboby knows how to
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From: |
Cinaed Simson |
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Subject: |
Re: [Discuss-gnuradio] Impulse response in DVB-T, someboby knows how to calculate? |
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Date: |
Sun, 2 Oct 2016 11:40:11 -0700 |
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On 10/01/2016 04:46 PM, Juan Antonio wrote:
> Hello, someone would know how to calculate the impulse response of a
> COFDM, DVB-T 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 gr-dvbt project on github
https://github.com/BogdanDIA/gr-dvbt
I don't know anything about it - I don't even know if it works.
-- Cinaed