Hi guys, I am trying to figure out how fir_filter work. In particular for the case that using fir_filter to perform cross-correlation in synchronization process. However, I read the code but still can not understand it. Please tell me if you know it. Thank you so much.
*Please refer to the following code in ofdm_sync_pnac.py self.crosscorr_filter = gr.fir_filter_ccc(1, kstime) // kstime is the known symbol # Cross-correlate input signal with known preamble self.connect(self.input, self.crosscorr_filter)* Best, Kay
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