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8Â¥: Originally posted by pdl9527 at 2014-02-19 15:16:14
Ëæ±ã±àÁËһϣ¬ÄâºÏ½á¹ûÓеãÎÊÌ⣬¹À¼ÆÊÇkµÄ³õÖµk0È¡µÃÓÐÎÊÌâ»òÕßÊý¾ÝÌ«ÉÙ»òÕßʵÑéÊý¾ÝÓÐÎÊÌâ¡£¡£¡£
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function piadatfit2
clear ...

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11Â¥2014-02-19 17:42:57
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7Â¥: Originally posted by ÖÓ¾² at 2014-02-19 13:10:49
ÎÒ»¹ÊǾõµÃÊý¾ÝÌ«ÉÙÁË£¬ÄÄÅ¿ÉÒÔÄâºÏ³öÀ´£¬½á¹ûµÄÒâÒåÒ²²»´óÁË¡£ÆäÖл¹ÓÐÒ»¸öµ¼Êý£¬ÄâºÏµÄʱºòÊÇÒª°ÑÕâ¸öËã³öÀ´°É£¬Èç¹û¼ä¸ôÊÇÒ»¸öСʱµÄ»°Çó³öµÄËÙÂÊÓдú±íÐÔ²»£¿...

Êý¾ÝÔ¤´¦Àíһϣ¬°üÀ¨²åÖµÒÔ¼°ÀûÓòåÖµÊý¾Ý½øÐÐÇ󵼵õ½r_RH.ÎÒ°ÑÄ£Ðͼò»¯ÁËһϣ¬ÆäÖÐÓÐЩ²ÎÊýÊdz˻ýÈ»ºó·ÅÔÚÒ»ÆðµÄ£¬ÕâÏÔÈ»¿ÉÒÔ×÷Ϊһ¸ö²ÎÊýÀ´¿´´ý¡£-y'=c1/(c1+c2*c_RH)*c2*c_RH*sqrt(c3*c_ROOH)+c4*c_ROOH.
1.н¨parameter_fixº¯Êý
function F=parameter_fix(c,xdata)
F=c(1)./(c(1)+c(2)*xdata(1,)*c(2).*xdata(1,.*sqrt(c(3).*xdata(2,)+c(4)*xdata(2,;
F=-F;
2.Êý¾ÝÔ¤´¦Àí¼°²ÎÊýÓÅ»¯
clear
clc
close all;
t=[0 1 2 3 4 5 6 8 10];
c_RH=[8.32016 7.37673 6.74433 5.92613 5.68806 5.01584 6.09249 5.34827 4.9961];
c_ROOH=[0 0.21115 0.7379 1.10562 1.29586 1.58327 1.36404 1.84065 2.00986];
dt=0.1;
t_x=0:dt:10;
y_RH=interp1([t,10.1],[c_RH,4.9961-(5.34827-4.9961)],[t_x,t_x(size(t_x,2))+dt]);
dy_RH=y_RH(2:size(t_x,2)+1)-y_RH(1:size(t_x,2));
ydata=interp1(t_x,dy_RH,t);
xdata=[c_RH;c_ROOH];
result=lsqcurvefit(@(c,xdata) parameter_fix(c,xdata),[1;1;1;1],xdata,ydata,[-inf;-inf;0;-inf],[inf;inf;inf;inf]);
12Â¥2014-02-19 17:52:03
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ÒýÓûØÌû:
12Â¥: Originally posted by Ì컨°å. at 2014-02-19 17:52:03
Êý¾ÝÔ¤´¦Àíһϣ¬°üÀ¨²åÖµÒÔ¼°ÀûÓòåÖµÊý¾Ý½øÐÐÇ󵼵õ½r_RH.ÎÒ°ÑÄ£Ðͼò»¯ÁËһϣ¬ÆäÖÐÓÐЩ²ÎÊýÊdz˻ýÈ»ºó·ÅÔÚÒ»ÆðµÄ£¬ÕâÏÔÈ»¿ÉÒÔ×÷Ϊһ¸ö²ÎÊýÀ´¿´´ý¡£-y'=c1/(c1+c2*c_RH)*c2*c_RH*sqrt(c3*c_ROOH)+c4*c_ROOH.
1 ...

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13Â¥2014-02-19 17:55:47
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ÒýÓûØÌû:
8Â¥: Originally posted by pdl9527 at 2014-02-19 17:16:14
Ëæ±ã±àÁËһϣ¬ÄâºÏ½á¹ûÓеãÎÊÌ⣬¹À¼ÆÊÇkµÄ³õÖµk0È¡µÃÓÐÎÊÌâ»òÕßÊý¾ÝÌ«ÉÙ»òÕßʵÑéÊý¾ÝÓÐÎÊÌâ¡£¡£¡£
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function piadatfit2
clear ...

k0ÊÇʲô¡£¡£¡£
14Â¥2015-04-07 20:10:49
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ÒýÓûØÌû:
8Â¥: Originally posted by pdl9527 at 2014-02-19 15:16:14
Ëæ±ã±àÁËһϣ¬ÄâºÏ½á¹ûÓеãÎÊÌ⣬¹À¼ÆÊÇkµÄ³õÖµk0È¡µÃÓÐÎÊÌâ»òÕßÊý¾ÝÌ«ÉÙ»òÕßʵÑéÊý¾ÝÓÐÎÊÌâ¡£¡£¡£
³ÌÐòÈçÏ£¬ÆäÖÐk0ÊÇÎÒËæ±ãÉèµÄ³õÖµ£¬k1=k1,k2=k1',k3=k8,k4=k4*,k5=k5,k6=f



function piadatfit2
clear ...

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