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lh349677499

гæ (³õÈëÎÄ̳)

[ÇóÖú] BPÉñ¾­ÍøÂçÔ¤²âÎó²îºÜ´ó£¬Ôõô»ØÊÂ

Ò»×éÊý¾Ý´Ó33Ë¥¼õµ½7£¬×öÊäÈ룻¶ÔÓ¦µÄÊä³öΪ1:50£»ÓÃBPÉñ¾­ÍøÂçÔ¤²âµ±ÊäÈëΪ0ʱ£¬Êä³öµÄֵΪ¶àÉÙ£¬ÒªÔõô×ö£¿
±¾È˵ijÌÐòÈçÏ£¬Ô¤²â³öÀ´µÄ½á¹ûÔÚ45.5×óÓÒ£¬¸Ð¾õ°´Ç÷ÊÆ£¬µ±ÊäÈëΪ0µÄʱºò£¬Êä³öÓ¦¸ÃÔÚ65-80Ö®¼ä£¬Îó²îÕâô´ó£¬ÊÇÔõô»ØÊ£¿ÇóÖ¸µ¼


clc;
clear all;
Er=[33.19;30.06;29.08;27.92;25.78;23.87;22.10;19.60;19.64;19.07;18.90;17.85;17.26;16.23;13.37;12.65;12.22;11.96;12.37;12.31;12.42;12.70;13.42;12.65;11.66;11.48;11.70;11.53;12.12;10.01;9.85;8.25;8.37;8.39;8.70;7.25;8.83;9.20;8.76;8.79;8.66;8.75;7.62;8.24;7.931;7.36;7.61;7.261;7.19;7.22];
p =Er;
t = 1:50;
p = p';
%ÀûÓÃpremnmxº¯Êý¶ÔÊý¾Ý½øÐйéÒ»»¯
[pn,minp,maxp,tn,mint,maxt]=premnmx(p,t); % ¶ÔÓÚÊäÈë¾ØÕópºÍÊä³ö¾ØÕót½øÐйéÒ»»¯´¦Àí
dx=[-1,1];                   %¹éÒ»»¯´¦Àíºó×îСֵΪ-1£¬×î´óֵΪ1
%BPÍøÂçѵÁ·
net=newff(minmax(pn),[11,1],{'tansig','purelin'},'trainlm');

net.trainParam.Lr=0.1;                 %ѧϰËÙ¶ÈΪ0.1
net.trainParam.epochs=500;           %×î´óѵÁ·1000´Î
net.trainParam.goal=1e-3;     %¾ù·½Îó²î
[net,tr]=train(net,pn,tn);                   %¿ªÊ¼ÑµÁ·£¬ÆäÖÐpn,tn·Ö±ðΪÊäÈëÊä³öÑù±¾
%ÀûÓÃԭʼÊý¾Ý¶ÔBPÍøÂç·ÂÕæ
an=sim(net,pn);           %ÓÃѵÁ·ºÃµÄÄ£ÐͽøÐзÂÕæ
a=postmnmx(an,mint,maxt); % °Ñ·ÂÕæµÃµ½µÄÊý¾Ý»¹Ô­ÎªÔ­Ê¼µÄÊýÁ¿¼¶£»

p_test= 0;
p_test = p_test';
pn_test=tramnmx(p_test,minp,maxp);
tn_test=sim(net,pn_test);
t_test=postmnmx(tn_test,mint,maxt)

[ Last edited by lh349677499 on 2014-12-11 at 15:55 ]
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