I am trying OFDM transmission and receive test.
Iâ€™m using Ubuntu 9.10, gnuradio version 3.3 and two USRP boards with
basic TX and RX and I am using GRC.
In the GRC I make simple test signal flow with usrp
Tx : File source -> OFDM mod -> USRP sink
Rx : USRP source-> OFDM demod ->file sink
As a my test I could not show not only constellation but also any other
signal(scope and file data)
But I could show receive spectrum using fftsink with USRP
However I created simple example like follow, it operate well.
File source-> OFDM mod-> OFDM demod ->file sink
In order to test USRP part I tested gpsk example in the
It operate well. I could show constellation.
How can I operate well OFDMmod / demod examples?
Additionally I wanna confirm constellation of OFDM demod data.
But GRC block of the OFDM demod are encapsulate. So To confirm OFDM
dÃ©mod constellation, I guess that I sholul split OFDM dÃ©mod block.
Am I correct?
Can you have a some hint?