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| Keywords: Kbd-window.jpg en Kaiser-Bessel derived KBD window function for different alpha values 2013-02-27 own Bob K The JPG image generated by the enclosed Octave script replaces the 5/1/2009 version which is a derivative of Kbd-window svg by RetoGalli Octave script <source lang Matlab > graphics_toolkit gnuplot N 129; M N-1; colors 0 0 1; 0 1 0; 0 1 1; 1 0 1; alphas 0 64 2 56 7 68 32; figure title 'Kaiser-Bessel-derived window functions' xlim 0 2 M-1 ylim 0 1 1 grid on ylabel ' ' create left margin set gca 'XTick' 0 1/8 1 2 M-1 set gca 'XTickLabel' ' 0'; ' '; ' '; ' '; ' '; ' '; ' '; ' '; '2M-1 ' set gca 'YTick' 0 0 2 0 4 0 6 0 707 0 8 1 0 text 2 1 05 'd_n' 'fontsize' 14 text 100 -0 05 '\leftarrow n \rightarrow' hold on for graph 1 4 alpha alphas graph ; color colors graph ; w besseli 0 pi alpha sqrt 1- 2 0 M /M -1 2 /besseli 0 pi alpha ; d zeros 1 2 M ; for n 0 M-1 d 1+n sum w 1+ 0 n ; end for n M 2 M-1 d 1+n sum w 1+ 0 2 M-1-n ; end d sqrt d/sum w 1+ 0 M ; plot 0 2 M-1 d 'color' color 'linewidth' 2 end hold off text 96 47 '\alpha 0 64' text 96 40 '\alpha 2 56' text 96 33 '\alpha 7 68' text 96 26 '\alpha 32' </source> </nowiki> Uploaded with derivativeFX Signal processing | ||||
