Could you give me tips for saving ofdm data? and interpolation?


I was able to get the data using file_sink with

self.file_sink = gr.file_sink(gr.sizeof_gr_complex, “filename.dat”)
self.connect(sef.txpath, self.file_sink)

and could see frequency spectrum using fft and fftshift in matlab.

also, I extended with file_sink, but data did not look
with transmit data.
Could you give me tips for that?

if I want to calculate the exact real time, can I divide x value by 64M
interpolation value?
Thank you for your help.