example7_4.m

用dsp解压mp3程序的算法

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% Example7_4.m - Program for example 7-4
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[b,a] = ellip(4,1,50,.3); % design an ellipe filter
h = impz(b,a,30);         % impulse response

[bb,aa] = prony(h,4,4);   % design using Prony method
h1 = impz(bb,aa,30);      % impulse response