I've looked a HF enough to know what a wry grin I will get with this
question, but I'm willing to risk a few guffaws at my expense.
It appears that FT8 (as one example) and WSJT-X are capable of at least
somewhat defining the expected variability of the HF channel. Have you
(the developers) mined this info to describe the channel? It seems that by
assuming a correct decode (and a time-invariant transmitter) each user
could store enough information (already supported by the SW) to describe
the channel statistics. I see hints that you are trying to provide the
capability to describe the transmitter, but what about the larger question
of the channel? Is there a behavior whereby a large body of users could
help describe the channel in a cooperative manner?
Sorry for the poor phraseology, but I am a self-taught waveform designer,
and never learned the cant. I do not know how much value traditional
metrics like Doppler rates and Doppler BW have for describing the channel,
but I would love to learn.
Don KE0G (formerly AE0AG)
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