最新南通大學dsp課程設計實驗及習題答案完整版精(編輯修改稿)
2025-07-23 19:11 本頁面
【文章內容簡介】 28。187。187。168。39。grid。wp=*pi。ws=*pi。ap=3。as=20。[N,wn]=buttord(wp/pi,ws/pi,ap,as。[b,a]=butter(N,wn,39。low39。figure(2freqz(b,a。n=0:47。x=1+cos(pi*n/4+cos(2*pi*n/3。y=filter(b,a,x。figure(3subplot(2,1,1。plot(n,x。grid。subplot(2,1,2。plot(n,y。grid。ws=*pi。wp=*pi。ap=3。as=20。[N,wn]=buttord(wp/pi,ws/pi,ap,as。[b,a]=butter(N,wn,39。high39。figure(4freqz(b,a。n=0:47。x=1+cos(pi*n/4+cos(2*pi*n/3。y=filter(b,a,x。figure(5subplot(2,1,1。plot(n,x。grid。subplot(2,1,2。plot(n,y。grid。wp=[*pi *pi]。ws=[*pi *pi]。ap=3。as=20。[N,wn]=buttord(wp./pi,ws./pi,ap,as。[b,a]=butter(N,wn,39。bandpass39。figure(6freqz(b,a。n=0:47。x=1+cos(pi*n/4+cos(2*pi*n/3。y=filter(b,a,x。figure(7subplot(2,1,1。plot(n,x。grid。subplot(2,1,2。plot(n,y。grid。實驗七N=25。wn=。b=fir1(N,wn,hamming(N+1。[H,w]=freqz(b,1。figure(1n=0:N。stem(b,39。.39。gridfigure(2plot(w/pi,20*log10(abs(H。gridb2=fir1(N,wn,boxcar(N+1。[H2,w]=freqz(b2,1。figure(3n=0:N。stem(b2,39。.39。gridfigure(4plot(w/pi,20*log10(abs(H2。gridb3=fir1(N,wn,blackman(N+1。[H3,w]=freqz(b3,1。figure(5n=0:N。stem(b3,39。.39。gridfigure(6plot(w/pi,20*log10(abs(H3。gridN2=30。wn2=[ ]。b4=fir1(N2,wn2,hamming(N2+1。[H4,w]=freqz(b4,1。figure(7n=0:N。stem(b4,39。.39。gridfigure(8plot(w/pi,20*log10(abs(H4。grid習題一n=12:
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