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qmxkiller

ľ³æ (СÓÐÃûÆø)

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11Â¥2015-09-24 09:44:16
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²»¾õ´ºÉî

ľ³æ (ÕýʽдÊÖ)

ľľ³æ

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

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);
ff=abs(In+1i*f);%Èç¡®ÐűËÄÏɽ¡¯µÄ¼ÆËã·½·¨
figure;
plot(n,In,'r-',n,ff,'k-')
Ϊʲôhilbert±ä»»ÇóµÃµÄ°üÂç²»Ïñ°üÂç
°üÂç.png

×ÝʹʮÄê²»½«¾ü£¬²»¿ÉÒ»ÈÕ²»¹°×ä¡£
12Â¥2016-12-01 22:47:48
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zhield

гæ (³õÈëÎÄ̳)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

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);
Inm=In-mean(In);
%Inm=In;
f=hilbert(Inm);
figure;
plot(n,Inm,'r-',n,abs(f),'k:');
hold on;
plot(n,-abs(f),'k:');

ÐèҪȥ³ý¾ùÖµÔÙ×öhilbert¡£
13Â¥2018-01-02 22:21:37
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