exam6_12.m

TI的DSP C55X的应用程序

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% exam6_12.m - MATLAB script for example 6-12
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Wp = 800/4000;  Ws= 1600/4000;
Rp = 1.0; Rs = 20.0;
[N, Wn] = buttord(Wp, Ws, Rp, Rs);
[b, a] = butter(N, Wn);
freqz(b, a, 512, 8000);