measurement_tools_blk

# Measurement Tools

gr::analog::probe_avg_mag_sqrd_c
gr::analog::probe_avg_mag_sqrd_cf
gr::analog::probe_avg_mag_sqrd_f
gr::blocks::ctrlport_probe2_b
gr::blocks::ctrlport_probe2_c
gr::blocks::ctrlport_probe2_f
gr::blocks::ctrlport_probe2_i
gr::blocks::ctrlport_probe2_s
gr::blocks::ctrlport_probe_c
gr::blocks::message_debug
gr::blocks::probe_rate
gr::blocks::probe_signal
gr::blocks::probe_signal_v
gr::blocks::tag_debug
gr::blocks::test_tag_variable_rate_ff
gr::digital::mpsk_snr_est_cc
gr::digital::probe_density_b
gr::digital::probe_mpsk_snr_est_c
gr::fft::ctrlport_probe_psd
snr_est_type_t
gr::digital::snr_est_type_t
SNR_EST_SIMPLE
= 0
SNR_EST_SKEW
SNR_EST_M2M4
SNR_EST_SVR

A block for computing SNR of a signal.

Below are some ROUGH estimates of what values of SNR each of these types of estimators is good for. In general, these offer a trade-off between accuracy and performance.

- SNR_EST_SIMPLE: Simple estimator (>= 7 dB)

- SNR_EST_SKEW: Skewness-base est (>= 5 dB)

- SNR_EST_M2M4: 2nd & 4th moment est (>= 1 dB)

- SNR_EST_SVR: SVR-based est (>= 0dB)