Re: [Discuss-gnuradio] Large FFTs

[Thomas Hobiger]

Hi Carles,

Thanks for the reply. That's a very helpful comment.

> we have found some problems when using USRP2+DBSRX for GPS due to
> phase noise. See details in http://www.ruby-forum.com/topic/213845
>    
Once we have the components in the lab, I am going to play with them, 
having your comment on my check-list.
> If someone have succeded on this, we would appreciate some hints to
> make it work. Our software GPS receiver was not able to track signals,
> while it run smoothly when using USRP1 + DBSRX without modification.
>    
By tracking signals, do you mean that one of the receiver loops (DLL, 
PLL) lost lock or does it only prevent to extract the navigation bits?

Best regards,
  Thomas Hobiger



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Dr. Thomas Hobiger
Space-Time Measurement Project
Space-Time Standards Group
New Generation Network Research Center
National Institute of Information and Communications Technology
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