Hi Marcus,
Thanks for the email. I connected the debug tag to OFDM Channel Estimation
and noted that the ofdm_sync_chan_taps key has 64 complex values.
Could you please confirm the following two things ?
i) These 64 complex values (a + ib) represent the 64 sub-carriers and I can
get the amplitude and phase of each sub-carrier as sqrt( a^2 + b^2) and
arctan(b/a) respectively ?
ii) I see that the CSI calculation is per tag. I understand from your link
that the tag represents additional information/metadata attached to a
specific item. However, in this case, I am unsure what a tag denotes? In
other words, could you please tell me what a “tag” is being attached to
here, on which a channel estimate is calculated?
iii) Please let me know what is the unit of rx_time ? Seconds?
Offset: 76 Source: n/a Key: rx_time Value: {7 0.303}
Offset: 77 Source: n/a Key: rx_time Value: {7 0.399}
Thanks for your help,
Avinash
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