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Re: [Discuss-gnuradio] Fourier Transform on multiple OFDM symbols
From: |
Martin Braun |
Subject: |
Re: [Discuss-gnuradio] Fourier Transform on multiple OFDM symbols |
Date: |
Sun, 3 Jan 2016 16:06:01 -0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 |
Typically, you'd do 1 (I)FFT per OFDM symbol. I recommend having a look
at the tx_ofdm.grc and rx_ofdm.grc examples, which show a full flow graph.
M
On 01/03/2016 01:22 PM, Aditya Virmani wrote:
> Hello everyone
>
> Iam trying to do run-time FFT over multiple OFDM symbols.
> For this, I feed in the same sequence of bytes for each OFDM symbol.
> As per my understanding, as I am feeding in the same sequence of bytes,
> it should be generating same set of symbols, and then further if we do
> FFT over multiple symbols which are same, we should get a sequence of
> peak-and-zeros, instead of continuous FFT graph.
> This works fine if I do just with two symbols (screenshot of that
> attached), but when I feed in more than two, it results in error ( I
> think that the data doesn't reach the FFT block concurrently, because
> the graph I get is same when I feed Null source and a Symbol source to
> FFT).
>
> It would be great if someone can guide me with it.
>
>
> Regards
> Aditya Virmani
>
>
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- [Discuss-gnuradio] Fourier Transform on multiple OFDM symbols, Aditya Virmani, 2016/01/03
- Re: [Discuss-gnuradio] Fourier Transform on multiple OFDM symbols,
Martin Braun <=
- Re: [Discuss-gnuradio] Fourier Transform on multiple OFDM symbols, Aditya Virmani, 2016/01/03
- Re: [Discuss-gnuradio] Fourier Transform on multiple OFDM symbols, Ron Economos, 2016/01/03
- Re: [Discuss-gnuradio] Fourier Transform on multiple OFDM symbols, Aditya Virmani, 2016/01/03
- Re: [Discuss-gnuradio] Fourier Transform on multiple OFDM symbols, Ron Economos, 2016/01/03
- Re: [Discuss-gnuradio] Fourier Transform on multiple OFDM symbols, Aditya Virmani, 2016/01/04
- Re: [Discuss-gnuradio] Fourier Transform on multiple OFDM symbols, Ron Economos, 2016/01/04