clear all close all figure(1) subplot(2,2,1) t = linspace(0,1,2048); si = sin( 2*pi * t); plot(t,si) title('ORIGINAL FUNCTION') subplot(2,2,2) wf=MakeONFilter('Symmlet',8); b=fwt_po(si,8, wf); plot(t,b) hold on plot(t(1), b(1), 'o') plot(t(256), b(256), 'o') plot(t, b(1)*ones(length(t)), 'r--') title('SYMMLET8') subplot(2,2,3) wf=MakeONFilter('Coiflet',3); b=fwt_po(si,8, wf); plot(t,b) hold on plot(t(1), b(1), 'o') plot(t(256), b(256), 'o') plot(t, b(1)*ones(length(t)), 'r--') title('COIF3') subplot(2,2,4) wf=MakeONFilter('Daubechies',20); b=fwt_po(si,8, wf); plot(t,b) hold on plot(t(1), b(1), 'o') plot(t(256), b(256), 'o') plot(t, b(1)*ones(length(t)), 'r--') title('DAUB20') print -depsc 'C:\Temp\Problem01.eps'