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lfr2712

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2Â¥2010-05-28 10:12:30
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brqhl_ing

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3Â¥2010-05-28 15:21:18
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lijinfeng042

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brqhl_ing(½ð±Ò+1):лл²ÎÓë
adu886886(½ð±Ò+2):ллָµ¼ 2010-05-28 19:55:47
brqhl_ing(½ð±Ò+4): 2010-05-29 08:26:30
ÒýÓûØÌû:
Originally posted by brqhl_ing at 2010-05-28 08:44:56:
Çë½Ì¸ßÊÖһϰ¡£¬ÈçºÎÔÚmatlabÖÐÀûÓÃÏ£¶û²®Ìر任À´¶¨ÒåÏàλ£¡×îºÃ¾Ù¸ö¼òµ¥µÄÀý×Ó£¡Íò·Ö¸Ðл£¡£¡

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CODE:
%ÓàÏÒÐźÅ
n=0:512;
Ts=0.0125;
xn=cos(40*pi*n*Ts);
subplot(2,1,1);plot(n,xn);
xlabel('²ÉÑùµãÊýn');ylabel('ԭʼͼÏñx(n)');title('ÓàÏÒÐźÅ')

xn1=hilbert(xn)
xr=real(xn1)
xi=imag(xn1)
P=atan2(xi,xr)%¶¨ÒåÏàλ¾ÍÊÇ·´ÕýÇÐ
subplot(2,1,2);
plot(P)
xlabel('²ÉÑùµãÊýn');ylabel('˲ʱÏàλ')

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