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sunjianfeng

½ð³æ (СÓÐÃûÆø)

[ÇóÖú] Ϊʲôhilbert±ä»»ÇóµÃµÄ°üÂç²»Ïñ°üÂç ÒÑÓÐ2È˲ÎÓë

Ϊʲôhilbert±ä»»ÇóµÃµÄ°üÂç²»Ïñ°üÂçÄØ£¿´úÂëÈçÏ£º
n=-5000:20:5000;
Ib=120;     
a=0.8;      
c=750;      
d=600;      
In=Ib+a*Ib*exp(-(0.5.*n/c).^2).*cos(2*pi*n./d);
f=hilbert(In);
figure;
plot(n,In,'r-',n,abs(f),'k-')
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zjliu1265

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sunjianfeng: ½ð±Ò+2 2012-04-24 12:29:47
xiegangmai: ½ð±Ò+1, лл²ÎÓ룡 2012-04-25 22:32:39
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http://product.dangdang.com/product.aspx?product_id=20582049
4Â¥2012-04-24 03:20:56
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zjliu1265

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xiegangmai: ½ð±Ò+2, ллӦÖú£¡ 2012-04-23 22:51:24
ÎÒ¾õµÃ°üÂçÏßÓ¦¸ÃÕâÑù»­°É£º
n=-5000:20:5000;
Ib=120;     
a=0.8;      
c=750;      
d=600;      
In=Ib+a*Ib*exp(-(0.5.*n/c).^2).*cos(2*pi*n./d);
f=hilbert(In);
figure;
plot(n,In,'r-',n,abs(f),'k-');
Ine=Ib+a*Ib*exp(-(0.5.*n/c).^2);
hold on;
plot(n,Ine,'k:')
plot(n,-Ine+2*Ib,'k:')

» ±¾ÌûÒÑ»ñµÃµÄºì»¨£¨×îÐÂ10¶ä£©

2Â¥2012-04-22 02:58:05
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

sunjianfeng

½ð³æ (СÓÐÃûÆø)

ËÍÏÊ»¨Ò»¶ä
ÒýÓûØÌû:
2Â¥: Originally posted by zjliu1265 at 2012-04-22 02:58:05:
ÎÒ¾õµÃ°üÂçÏßÓ¦¸ÃÕâÑù»­°É£º
n=-5000:20:5000;
Ib=120;     
a=0.8;      
c=750;      
d=600;      
In=Ib+a*Ib*exp(-(0.5.*n/c).^2).*cos(2*pi*n./d);
f=hilbert(In);
figure;
plot(n,In,'r-',n,ab ...

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3Â¥2012-04-23 12:45:51
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