Hi guys, Thanks in advance .
I am doing the ofdm preamble sync test, using the pn-peak PN Correlation method. Please refer to* ofdm_sync_pn.py* file. Before the normalization process, I open the *gr__peak_detector_fb.cc*file, and try the print out the peak_val, to see if the peak_value is very large. According the PN correlation process, I believe the peak value is subjected to ifft_length, at least 64 or more. But the actual output value is very small, nearly 2 or 3. I am so confused. * *The PN correlation method can be referred to *T. M. Schmidl and D. C. Cox, "Robust Frequency and Timing Synchonization for OFDM," IEEE Trans. Communications, vol. 45,no. 12, 1997.*
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