Polyphase Resampler blks2_pfb_arb_resampler_ccf from gnuradio import blks2 from gnuradio.gr import firdes blks2.pfb_arb_resampler_ccf( $rate, $taps, $size, ) set_rate($rate) Resample Rate rate real Taps taps real_vector Size (# phases) size 32 int in complex out complex