Re: [Discuss-gnuradio] USRP2 + WBX How to use a 32 MHz signal band?

[Vladutzzz]

Per,
At the moment we don't have a MIMO cable, so we're looking for alternative
solutions until one makes its way to our lab :)
Thank you for your suggestion though, it is much appreciated.
All the best,

Vlad.


 

Per Zetterberg-2 wrote:
> 
> On Tue, 2010-11-30 at 08:27 -0800, Vladutzzz wrote:
>> I am interested in this 2 USRPs approach since I don't have the
>> experience
>> and the knowledge to start messing about inside the FPGA firmware code
>> and
>> have an extra USRP2.
>> How would this go?
>> I tried looking up some info about this topic but currently the
>> ettus.com/... resources seem to be down. I've read some bits and pieces
>> on a
>> few forums. Most of the info is about having one USRP2 module as a
>> transmitter and the other as a receiver.
>> I want them both to be receivers(actually half a receiver) and to
>> complete
>> each other by receiving half of the 32 MHz band (so each would receive 16
>> MHz).
>> How would the USRPs be connected to the same computer?
>> How will the two 16 MHz bands be attached together to form the 32 MHz one
>> (some kind of 2:1 multiplexing - I'm just guessing here)?
>> I am aware of the great load exerted upon the system resources, but I'm
>> trying to make this work anyway. 
>> Thanks.
>> 
>> Vlad.
>> 
> 
> My suggestion would be to connect the two USRP2s as a MIMO pair, but
> tune them with 16MHz offset relative to each other. Then you would need
> to design a way (a signal processing method) to merge the two streams
> together into a single wide-band stream. 
> 
> 
> BR/
> Per
> 
> 
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