view m-toolbox/classes/@specwin/win_ftni.m @ 44:409a22968d5e
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Add unit tests
author
Daniele Nicolodi <nicolodi@science.unitn.it>
date
Tue, 06 Dec 2011 18:42:11 +0100 (2011-12-06)
parents
f0afece42f48
children
line source
+ − % WIN_FTNI returns FTNI window, with N points.
+ − % If mode == 'define', the window values will be empty and all the features
+ − % If mode == 'build', the window values will be calculated
+ − %
+ − % M Hewitson 18-05-07
+ − %
+ − % $Id: win_ftni.m,v 1.5 2011/05/25 07:30:08 mauro Exp $
+ − %
+ −
+ − function varargout = win_ftni(w, mode, N)
+ −
+ − switch lower(mode)
+ −
+ − case 'build'
+ − n_args = nargin;
+ − if n_args < 3
+ − N = w.len;
+ − end
+ − % Calculate the values of the window
+ − z = [0:N-1]./N * 2 * pi;
+ − varargout{1} = 0.2810639 - 0.5208972 * cos (z) + 0.1980399 * cos (2 * z);
+ −
+ − case 'define'
+ − % Make window struct
+ − w.type = 'FTNI';
+ − w.alpha = 0;
+ − w.psll = 44.4;
+ − w.rov = 65.6;
+ − w.nenbw = 2.9656;
+ − w.w3db = 2.9355;
+ − w.flatness = 0.0169;
+ − w.len = N;
+ − w.skip = 0;
+ −
+ − varargout{1} = w;
+ − end
+ −
+ − % END