> > > Dear Martin, Thanks for the ideas.
> > Two ideas: > - You could remove the sync block and sync your rx/tx paths with other > means (e.g. MIMO connector, it depends on your hardware). This makes the > sync influence independent of the noise. > Good idea, I will try it out once I get the cables. > > - Reconsider if the phase rotation really makes your measurements > invalid. You'll have a phase rotation in any case (due to channel, > propagation time etc.). The timing-related phase offset is constant, > after all, and the phase difference between sub-carriers depends on the > sub-carrier distance, too. Perhaps it doesn't matter all that much? > That makes sense. I want to study the different phenomena that affect phase rotations in the channel. By eliminating the USRP hardware (by connecting the TX and RX blocks to each other through a channel model block), I can control the PDP of the simulated channel, for example. Thank you for your inputs. This is very useful to me. best regards, aditya
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