--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main/signal/inst/bohmanwin.m	Mon Jul 09 17:46:13 2007 +0000
@@ -0,0 +1,35 @@
+## Copyright (C) 2007   Sissou   <sylvain.pelissier@gmail.com>
+##
+## 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {[@var{w}] =} bohmanwin(@var{L})
+##	Compute the Bohman window of lenght L.
+## @seealso{rectwin,  bartlett}
+## @end deftypefn
+
+function [w] = bohmanwin(L)
+	if (nargin < 1); usage('bohmanwin(x)'); end
+	if(! isscalar(L))
+		error("L must be a number");
+	endif
+	
+	N = L-1;
+	n = -ceil(N/2):N/2;
+	
+	w = (1-2.*abs(n)./N).*cos(2.*pi.*abs(n)./N) + (1./pi).*sin(2.*pi.*abs(n)./N);
+	w(1) = 0;
+	w(length(w))=0;
+endfunction;
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