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[ÇóÖú] MatlabÖÐFFTºÍIFFTÎÊÌâ ÒÑÓÐ1È˲ÎÓë

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clear all;
clc;
x1=[1 0 0 1 1 0 1 0]';
x11=fft(x1);
x2=[1 1 0 0 1 1 1 0]';
x22=fft(x2);
y1=[0 0 0 1 0 1 0 1]';
y11=fft(y1);
y2=[0 1 0 0 0 1 0 0]';
y22=fft(y2);
X=[x11,x22];
Y=[y11,y22];
M_xy=max_add(X,Y);
out=recognition_M(M_xy,x22);     %ÊäÈëx22£¬¾Í¿ÉÒԵõ½y22
z=ifft(out);

%¹¦Äܺ¯Êý
function m=min_add(x,y)
h=size(x);
for i=1:h
    for j=1:h
        m(i,j)=min(y(i,-x(j,);
    end
end

function y=recognition_M(M,x)
z=x';
[s1,s2]=size(M);
for i=1:s1
    y(i)=min(M(i,+z);
end
y=y';
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Ìú³æ (³õÈëÎÄ̳)

ÒýÓûØÌû:
3Â¥: Originally posted by gorgan at 2014-05-13 09:34:57
M_xy=max_add(X,Y);
µ÷Óõĺ¯ÊýÊÇmax_add
¿ÉÊÇÔÚÏÂÃæµÄ¹¦Äܺ¯ÊýÖÐÖ»¿´µ½ÁËmin_add

×òÌìÉÏ´«´íÁË£¬max_addÊÇÕâÑùµÄ¡£
function m=max_add(x,y)
h=size(x);
for i=1:h
    for j=1:h
        m(i,j)=max(y(i,-x(j,);
    end
end
Ö»Óо¡Á¦ÁË£¬²ÅÓÐ×ʸñ˵×Ô¼ºÔËÆø²»ºÃ¡£
4Â¥2014-05-13 09:41:04
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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Ìú³æ (³õÈëÎÄ̳)

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2Â¥2014-05-12 21:42:37
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

gorgan

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ʶ±ð_СÐì: ½ð±Ò+1, ¡ïÓаïÖú 2014-06-25 11:02:54
M_xy=max_add(X,Y);
µ÷Óõĺ¯ÊýÊÇmax_add
¿ÉÊÇÔÚÏÂÃæµÄ¹¦Äܺ¯ÊýÖÐÖ»¿´µ½ÁËmin_add
ÎÞÎÒÏ࣬ÎÞÈËÏ࣬ÎÞÖÚÉúÏ࣬ÎÞÊÙÕßÏà
3Â¥2014-05-13 09:34:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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