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[Discuss-gnuradio] FFT beamforming


From: Marcus D. Leech
Subject: [Discuss-gnuradio] FFT beamforming
Date: Tue, 13 Apr 2010 11:14:19 -0400
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.9) Gecko/20100330 Fedora/3.0.4-1.fc12 Thunderbird/3.0.4

I have a potential application for an FFT beamformer.  5 or 7 antennas,
5 or 7 USRP2.

The actual application is fairly narrowband--less than 250KHz wide.

If I lock all the USRP2 to a common source (GPSDO probably) is that
likely to be good enough
  for an FFT beamformer?  The computational burden will be quite modest
of course, since the
  bandwidth will be 250KHz or less, but what of the required phase
coherence?

Anyone had any related experience?

Cheers

-- 
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org






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