[USRP-users] problem with MISO signal receiving

Martin Braun martin.braun at ettus.com
Thu Apr 2 16:40:50 EDT 2015

Which daughterboards are you using?

Also, which signals are you transmitting? Is it some kind of orthogonal 
code (zadoff-chu or something like that?). Or are you relying on some 
fixed phase relation?


On 02.04.2015 02:12, scott tiger via USRP-users wrote:
> Hello all,
> I am trying to send two orthogonal sequences from different antennas and
> receive them in one (2 by 1) . I am using two USRP for transmitting
> purpose synchronized using MIMO cable (with two antennas) and receive
> one signal but when I check it it seems that all the orthogonality
> disappears. While when I use SISO transmission I can receive a good
> signal. Can you please help me in this problem? Can be this problem
> caused because of unsynchronized receiver with the transmission part ?

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