Mercurial > hg > ltpda
view m-toolbox/classes/@specwin/win_hft169d.m @ 13:e05504b18072 database-connection-manager
Move more functions to utils.repository
author | Daniele Nicolodi <nicolodi@science.unitn.it> |
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date | Mon, 05 Dec 2011 16:20:06 +0100 |
parents | f0afece42f48 |
children |
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% WIN_HFT169D returns HFT169D 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_hft169d.m,v 1.5 2011/05/25 07:30:08 mauro Exp $ % function varargout = win_hft169d(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} = (1 - 1.97441843 * cos (z) ... + 1.65409889 * cos (2 * z) - 0.95788187 * cos (3 * z) + ... 0.33673420 * cos (4 * z) - 0.06364622 * cos (5 * z) + ... 0.00521942 * cos (6 * z) - 0.00010599 * cos (7 * z)); case 'define' % Make window struct w.type = 'HFT169D'; w.alpha = 0; w.psll = 169.5; w.rov = 81.2; w.nenbw = 4.8347; w.w3db = 4.7588; w.flatness = 0.0017; w.len = N; w.skip = 0; varargout{1} = w; end % END