On Fri, May 16, 2008 at 03:54:55PM -0400, Kuo-Chun Huang wrote:
I have a question about the transmit amplitude. In the example file
“transmit_path.py”, the amplitude is range from 0 to 32768. But what
does these number mean?
They serve as a constant multiplier of the signal. They are not
directly tied to a calibrated power level. As part of the work on the
USRP2, there has been some discussion of a normalized power level /
signal level going to/from the USRP2, measured at some not yet
determined reference point in the system. There would need to be a
framework that knew about the various daughterboards, etc.
Also, when the other GNUradio nodes receive the packet, how do I
measure the receive power or the relative receiving amplitude?
There are several ways you could do this. Average magnitude squared is