deerlab.der_snr

der_snr(y)

DER-SNR noise estimation

Estimate the noise level using the DER_SNR method [1].

Parameters:

yarray_like

Noisy dataset.

Returns:

sigmafloat scalar

Noise standard deviation.

References

[1]

F. Stoehr, R. White, M. Smith, I. Kamp, R. Thompson, D. Durand, W. Freudling, D. Fraquelli, J. Haase, R. Hook, T. Kimball, M. Kummel, K. Levay, M. Lombardi, A. Micol, T. Rogers DERSNR: A Simple & General Spectroscopic Signal-to-Noise Measurement Algorithm Astronomical Data Analysis Software and Systems XVII, ASP Conference Series, Vol. 30, 2008, p5.4