Mercurial > hg > smallbox
view util/snr.m @ 162:88578ec2f94a danieleb
Updated grassmannian function and minor debugs
author | Daniele Barchiesi <daniele.barchiesi@eecs.qmul.ac.uk> |
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date | Wed, 31 Aug 2011 13:52:23 +0100 |
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function x = snr(s,r) % SNR calculates the signal-to-noise ratio between the signal s and its % representation r defined as: % SNR = 20*log10(||s||_2/||s-r||_2) err = s-r; x = mag2db(norm(s(:))/norm(err(:)));