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ÎÊÌ⣺ÉèÖÃNΪ3£¬FΪ5£¬A97ÖеÄÿһÐУ¨Ò»¸öÑù±¾£©µÄµ½µÄƽ»¬Êý¾Ý¡¢Ò»½×µ¼ÊýºÍ¶þ½×µ¼Êý¾ùÊÇÊÇ1*104µÄ¾ØÕó£»ÓÐ97¸öÑù±¾£¬µÃµ½µÄÊý¾ÝÓ¦¸ÃÊÇ97*104µÄ¾ØÕ󣬵«°´ÏÂÃæµÄ³ÌÐòÔËÐеõ½µÄƽ»¬Êý¾ÝºÍÒ»½×µ¼Êý£¬¶þ½×µ¼ÊýΪ 1*9897£¬ÕâÏÔÈ»²»¶Ô°¡ ³ÌÐò´úÂëÈçÏ£º clear,clc load A97 %µ¼Èë¹âÆ×,µÚÒ»ÁÐΪ±àºÅ£¬×îºóÒ»ÁÐΪŨ¶ÈÖµ dx=1; x=215:321; %²¨³¤·¶Î§ÊÇ215nm-321nm a=length(x); %xµÄÊý¾Ý¸öÊý k=0:96; % kΪÑù±¾±àºÅ SG0=[]; SG1=[]; SG2=[]; N=input('ÇëÊäÈëÄâºÏ´ÎÊý'); F=input('ÉèÖô°¿Ú²ÎÊý(ÆæÊý)'); for k=k+1 y=A97(k,2:108); %µÚk¸öÑù±¾ 215nm-321nm¶ÔÓ¦µÄÎü¹â¶È [b,g]=sgolay(N,F); Halfwin=((F+1)/2)-1; for n=(F+1)/2:a-(F+1)/2, %SGƽ»¬ SG0(n)=dot(g(:,1),y(n-Halfwin:n+Halfwin)); SG0=[SG0,SG0(n)]; %Ò»½×²î·ÖÇóµ¼ SG1(n)=dot(g(:,2),y(n-Halfwin:n+Halfwin)); SG1=[SG1,SG1(n)]; %¶þ½×²î·ÖÇóµ¼ SG2(n)=2*dot(g(:,3)',y(n-Halfwin:n+Halfwin))'; SG2=[SG2,SG2(n)]; end SG1=SG1/dx; SG2=SG2/(dx*dx); subplot(3,1,1); plot(SG0) legend('S-G Smooth'); subplot(3,1,2); plot(SG1) legend('S-G Smooth 1st derivative'); subplot(3,1,3); plot(SG2) legend('S-G Smooth 2st derivativa'); end |
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