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LPF.m

+function [h] = LPF(type, fcut, reso, Nper)
+
+Tb = 1e-06;
+M = reso*Nper;
+
+Ham = 0.54 - 0.46*cos( (2*pi*(0:M))/M );
+Black = 0.42 - 0.5*cos( (2*pi*(0:M))/M ) + 0.08*cos( (4*pi*(0:M))/M );
+
+sinc_trunc = sin((fcut*2*pi*((0:M)/(M/Nper)-Nper/2)*Tb)) ./ (fcut*2*pi*((0:M)/(M/Nper)-Nper/2)*Tb);
+sinc_trunc(isnan(sinc_trunc)) = 1;
+
+
+if (strcmp(type,'Hamming'))
+    h = Ham.*sinc_trunc;
+elseif (strcmp(type, 'Blackman'))
+    h = Black.*sinc_trunc;
+else
+    fprintf('Error: this window type is not implemented!');
+end
+
+
+end
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