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3Â¥2016-04-07 21:18:39
jielun5
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2Â¥2016-04-07 21:03:40
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4Â¥2016-04-07 21:24:33
jielun5
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n=0:1/20:1; x=cos(2*pi*n); figure plot(n,x) grid on; hold on; y=sin(2*pi*n); plot(n,y); N=length(n);%ÔÀëÉ¢ÐźŵĵãÊý w=[-800:1:800]*4*pi/800; %ƵÓò¹²-800----+800 µÄ³¤¶È£¨±¾Ó¦ÊÇÎÞÇ¸ßƵ·ÖÁ¿ºÜÉÙ£¬¹Êʡȥ£© X=x*exp(-j*(n'*w));%żº¯Êý¸µÁ¢Ò¶±ä»» figure plot(w/pi,abs(X)); grid on; hold on; Y=y*exp(-j*(n'*w));%Ææº¯Êý¸µÁ¢Ò¶±ä»» plot(w/pi,abs(Y)); |

5Â¥2016-04-08 10:17:26














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