Hello, everyone. I am now using USRP b210 and gnuradio to implement
a MIMO system. In order to determine the beginning of the received signal, I
use the synchronization sequence to find the frame head, and display the offset
of the frame head compared to the item that the receiving antenna firstly
receives on the terminal. But when I run the flow graph every time, the offset
of the frame header is different. Where does the difference come from? The
wireless transmission process or the gnuradio data processing process?
In addition, on b210, are the transmission delay from two different
transmitting antennas to two different receiving antennas the same?
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