dir_resp.m

mimo在cost207信道下的链路的代码

function dr = dir_resp(theta, Anr, d) 
% This function creates the Steering vector of a linear array with element
% spacing d. theta is the angle between the wave and the antenna array, and 
% Anr denotes the number of antennas.
%
% Copyright (C)2005  Helmut Hofstetter
% 
%  This program is free software; you can redistribute it and/or modify
%  it under the terms of the GNU General Public License as published by
%  the Free Software Foundation; either version 2 of the License, or
%  (at your option) any later version.
% 
%  This program is distributed in the hope that it will be useful,
%  but WITHOUT ANY WARRANTY; without even the implied warranty of
%  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
%  GNU General Public License for more details.
% 
%  You should have received a copy of the GNU General Public License
%  along with this program; if not, write to the Free Software
%  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
% 
%----------------------------------------------------------------------%
%                                                                      %
%              Author: Helmut Hofstetter <[e-mail]>           %
%             Created: 25/05/2005 by HH                                %
%   Last modification: 18/08/2005 by HH                                %
%        Organization: Telecommunications Research Center Vienna,      %
%                      Tech Gate Vienna,                               %
%                      Donau-City Str. 1 / 3rd floor,                  %
%                      A-1220 Vienna, Austria.                         %
%             Project: FTW C9 "MIMO UMTS for future packet services"   %
%    Deliverable Type: This M-file is public available                 %
%                 URL: http://www.ftw.at/cost273/                      %
%         Source Code: MATLAB v7.0 SP2                                 %
%             History:                                                 %
%             Created: 1.00, 25/05/2005 by HH (ftw)                    %
%                                                                      %
%----------------------------------------------------------------------%

k = (0:Anr-1); 
dr = exp(1j*2*pi*d*kron(k,sin(theta(:))));