Re: Question about OFDM channel estimation block

[Marcus Müller]

Hi Philip,

have you checked the OFDM example flow graphs that come with GNU Radio? They're usually 
installed in a place like /usr/share/gnuradio/examples/digital/ofdm.


Best regards,
Marcus

On 08.05.23 08:56, Philip Cao wrote:

Hi everyone!

I am trying to learn something about the OFDM system and I found that in the code of OFDM 
channel estimation block, it uses the synch. word and without pilot symbols. I think it 
should also have some function related to the pilot but there is not. Could someone help 
me about this?  This means that if you want to implement channel estimation using pilot 
with GNU radio you need to use a custom module, is this correct? Any help would be greatly 
appreciated, thanks!


Best regards
Philip


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Re: Combining Packet Header and Vector Source for BPSK tx

[Marcus Müller]

Hi Michelle,

you should probably *not* be using GNU Radio 3.8 at this point! Please use a more modern 
version.


Best regards,

On 08.05.23 20:31, Michelle Salehi wrote:
Hi, I have an example of BPSK tx/rx in GNU Radio generated from a vector source and was 
trying to send a packet that has a sync word, header, and body/data being sent.  I see the 
example at this tutorial Packet Communications - GNU Radio 
 and the example file 
"Pkt_xmt_gr38.grc"  I guess I'm not understanding how I would add the vector source data 
to the embedded python block "Packet Format GR38"?  If you have any suggestions on where I 
can start to understand this that would be appreciated. Thanks for your help!


Michelle


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