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@@ -1,4 +1,19 @@
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function [ x ] = OMP( y , D , k )
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+% Author: Clément DORFFER
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+% Date: 26/11/2018
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+% @: clement.dorffer@ensta-bretagne.fr
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+% Goal: perform a sparse approximation of a signal y using a weighted Orthogonal Matching Pursuit (OMP) technique
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+% which was used in:
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+%
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+% C. Dorffer, M. Puigt, G. Delmaire, G. Roussel, Informed Nonnegative Matrix Factorization Methods for
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+% Mobile Sensor Network Calibration, IEEE Transactions on Signal and Information Processing over Networks,
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+% Volume 4, Issue 4, pp. 667-682, December 2018 ;
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+%
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+% and is inspired by the original OMP technique proposed in:
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+%
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+% Y. Pati, R. Rezaiifar, P. Krishnaprasad, Orthogonal Matching Pursuit: recursive function approximation
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+% with application to wavelet decomposition, in Proc. IEEE ACSSC'93, 1993.
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+%
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residual = y;
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