SNR improvement attributable to a filter (dB)

Compares SNR of (clean vs. clean-noisy) before filtering with SNR of (clean vs. clean-filtered) after; positive values mean the filter reduced noise relative to clean.

Usage

morie_dsp_snr_improvement(x_noisy, x_clean, x_filtered)

Arguments

x_noisy

Observed noisy vector.

x_clean

Clean reference.

x_filtered

Filter output.

Value

Delta SNR in dB.

References

Rangayyan & Krishnan (2015), Ch. 3, sec. 3.2.