Hi,
I came across a very beautiful gnuradio/USRP usage for intentional
signal
aliasing application. The authors used USRP2 with its 25MHz digitizing
capability to analyze the full bluetooth 79MHz wide channels by removing
the
RFX2400 anti-aliasing filter and disabling the FPGA HBF when working
with
decimation of 4.
http://www.shmoocon.org/presentations-all.html#bluetooth
www.ossmann.com/shmoo-09/ossmann-spill-shmoo-2009.pdf
http://sourceforge.net/projects/gr-bluetooth/
The source code contains a good documented readme files that explains
gnuradio/usrp modifications needed.
Best Regards,
Firas
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