Hi, I am working on making a FMCW radar on USRP E320 where a significant part of the software is on rfnoc.
To the replay block it feeds a file which is a signal or more precisely a single pulse, from the replay block it feeds the same signal to the radio block to send it. the same signal from the replay block through the second output feeds to its own conjugate multiplication block. where there is a multiplication between the transmitted signal conjugated and received. I check the operation of the program using matlab where it expects a constant frequency. The program works, but each subsequent run gives me a different frequency. I think the problem lies in the synchronization between sending and receiving. How to make it happen at the same time? in the attachment I send my code. Thank you very much for any help.
FMCW11.cpp
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