MPSK SNR Estimator Probe digital_probe_mpsk_snr_est_c from gnuradio import digital digital.probe_mpsk_snr_est_c($type, $msg_nsamples, $alpha) set_type($type) set_msg_nsample($msg_nsamples) set_alpha($alpha) Type type enum Simple 0 Skewness 1 2nd and 4th Moment 2 SVR 3 Samples between SNR messages msg_nsamples 10000 int Filter Alpha alpha 0.001 real in complex