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for ii=1:mk; ²âµã¸öÊý
sf=100; %¶ÁÈë²ÉÑùƵÂÊÖµ
nt=length(x(ii, );
t1=0:1/sf nt-1)/sf; %ÔʼÊý¾ÝµÄʱ¼ä×ø±ê
figure(1)
h1=plot(t1,x(ii, );
xlabel('ʱ¼ä(s)');
ylabel('¼ÓËÙ¶È·ùÖµ(cm/s2)');
grid on; %´òÓ¡Ôʼ¼ÓËÙ¶Èʱ³ÌÇúÏß
filename1=['SE4.6' num2str(ii) '¼ÓËÙ¶Èʱ³ÌÇúÏß.jpg'];
saveas(h1,filename1)
close(1);
np=100; %Êä³öÊý¾Ý³¤¶È
s=1.5*std(x(1, ); %¶à´ÎÑéË㣬ȡ1.5±¶µÄ±ê×¼²î×ÔÓÉÇúÏ߱ȽϹ⻬
m=0;
y=zeros(1,np);
for k=2:nt-np
a=abs(x(1,k-1)-s);
b=abs(x(1,k)-s);
c=abs(x(1,k+1)-s); %´¥·¢Ìõ¼þΪ×î½Ó½üSµÄµã
if b<a&b<c
y(1:np)=y(1:np)+x(ii,k:k+np-1);
m=m+1;
end
end
y=y./m;
end
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