Rank: 43073 based on 0 downloads (last 30 days) and 0 file submitted

Noam Wagner


Personal Profile:


Watch this Author's files


Comments and Ratings by Noam Wagner
Updated File Comments Rating
14 Aug 2012 CoSaMP and OMP for sparse recovery Orthogonal Matching Pursuit (OMP) and Compressive Sampling Matched Pursuit (CoSaMP). Author: Stephen Becker

Hi Stephan,
Thank you very much for the very nice and useful OMP code.
I believe there might be a mistake in the orthogonalization loop of "atom_new", when working in fast mode. I think the equation:

atom_new = atom_new - (atom_new'*A_T(:,j))*A_T(:,j);

should be modified to:

atom_new = atom_new - (A_T(:,j)'*atom_new)*A_T(:,j);

This turns out significant when working with complex numbers. Otherwise, one may notice different behavior in slow and fast modes.
Thanks again!

Contact us