bpdq_generate_sensing_matrix : Compute pseudorandom sensing matrix A=bpdq_generate_sensing_matrix(M,N,seed) Generates M x N Gaussian random matrix Inputs : M,N - dimensions of matrix seed - (optional) seed for random number generator Outputs : A - M x N matrix with zero mean, unit variance i.i.d. Gaussian entries. This file is part of BPDQ Toolbox (Basis Pursuit DeQuantizer) Copyright (C) 2009, the BPDQ Team (see the file AUTHORS distributed with this library) (See the notice at the end of the file.)
0001 % bpdq_generate_sensing_matrix : Compute pseudorandom sensing matrix 0002 % 0003 % A=bpdq_generate_sensing_matrix(M,N,seed) 0004 % 0005 % Generates M x N Gaussian random matrix 0006 % 0007 % Inputs : 0008 % M,N - dimensions of matrix 0009 % seed - (optional) seed for random number generator 0010 % 0011 % Outputs : 0012 % A - M x N matrix with zero mean, unit variance i.i.d. Gaussian entries. 0013 % 0014 % This file is part of BPDQ Toolbox (Basis Pursuit DeQuantizer) 0015 % Copyright (C) 2009, the BPDQ Team (see the file AUTHORS distributed with 0016 % this library) (See the notice at the end of the file.) 0017 0018 function A=bpdq_generate_sensing_matrix(M,N,seed) 0019 if (nargin==3) 0020 randn('seed',seed); 0021 end 0022 A = randn(M,N); 0023 0024 % The BPDQ Toolbox is free software: you can redistribute it and/or modify 0025 % it under the terms of the GNU General Public License as published by 0026 % the Free Software Foundation, either version 3 of the License, or 0027 % (at your option) any later version. 0028 % 0029 % The BPDQ Toolbox is distributed in the hope that it will be useful, 0030 % but WITHOUT ANY WARRANTY; without even the implied warranty of 0031 % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0032 % GNU General Public License for more details. 0033 % 0034 % You should have received a copy of the GNU General Public License 0035 % along with The BPDQ Toolbox. If not, see <http://www.gnu.org/licenses/>.