Hi Martin:
Thank you in advance.I have read many papers on the topic
"integer cfo of OFDM".They all said it make the subcarriers cyclic shift.
For example:
"
http://nutaq.com/en/blog/brief-overview-frequency-synchronization-ofdm "
It said "Integer CFO does not introduce ICI between sub-carriers, but does
introduce a cyclic shift of data sub-carriers..."
Is it right?And the source code ofdm_chanest_vcvc_impl.cc is right?Maybe I'm
wrong.Can you explain it?Thank you.
Best regards,
zs
At 2015-01-25 19:27:30, "Martin Braun" <martin.br...@ettus.com> wrote:
>On 01/25/2015 08:10 AM, zs wrote:
>> Hi Martin:
>> Thank you for your reply.And we know this block do
>> "Estimate channel and coarse frequency offset for OFDM from
>> preambles".And the coarse frequency offset is a integer.And it make the
>> subcarriers cyclic shift.Just illustration as this:
>
>No cyclic shift. There must be enough space between the out subcarriers
>and the Nyquist zone boundaries. Hope this clears things up!
>
>And please respond to the list.
>
>M
>
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