| ²é¿´: 1605 | »Ø¸´: 0 | ||
½Üsunflowerгæ (³õÈëÎÄ̳)
|
[ÇóÖú]
´óÉñÇóÖú£¡£¡£¡£¡MATLABÑ»·ÔËÐв»ÏÂÈ¥~~~~
|
|
clear all; %ÇóµØÖʲÎÊý Vp=[1.70 1.96 2.71 3.76 4.69 6.40]; Vs=[0.98 1.13 1.57 2.17 2.71 3.70]; Den=[1.28 1.36 1.59 1.91 2.19 2.71]; Z=[0 0.18 0.73 1.71 2.9 5.58]; miu=zeros(1,length(Vs)); for j=1:1:length(Vs) miu(j)=(Vs(j))^2*Den(j); end WL=zeros(1,length(Vp)); for j=1:1:length(Vp) WL(j)=(Vp(j))^2*Den(j)-2*miu(j); end N=2048; f=(0:N-1)*100/N; A=zeros(1,length(Vp)); B=A; for j=1:1:6 A(j)=4*miu(j)*(WL(j)+miu(j))/(WL(j)+2*miu(j)); B(j)=1/(WL(j)+2*miu(j)); end AAA=zeros(2,2); I=eye(2); for i=2:1:2%N/4´ÎÑ»·£¬Çó½âÿ¸öƵÂÊËù¶ÔÓ¦µÄ²¨Êý syms kk; %¼ÆËãE¾ØÕó for j=1:1:6 C(j)=vpa((kk^2-(2*pi*f(i)/Vs(j))^2)^0.5,5);%v D(j)=vpa((kk^2-(2*pi*f(i)/Vp(j))^2)^0.5,5);%r X(j)=kk^2+(C(j))^2; X(j)=vpa(X(j),5); E11{j}=[Vp(j)*kk Vs(j)*C(j);Vp(j)*D(j) Vs(j)*kk]/(2*pi*f(i)); E11{j}=vpa(E11{j},5); E12{j}=[Vp(j)*kk Vs(j)*C(j);-Vp(j)*D(j) -Vs(j)*kk]/(2*pi*f(i)); E12{j}=vpa(E12{j},5); E21{j}=[-2*Vp(j)*miu(j)*D(j)*kk -Vs(j)*miu(j)*X(j);-Vp(j)*miu(j)*X(j) -2*Vs(j)*miu(j)*C(j)*kk]/(2*pi*f(i)); E21{j}=vpa(E21{j},5); E22{j}=[2*Vp(j)*miu(j)*D(j)*kk Vs(j)*miu(j)*X(j);-Vp(j)*miu(j)*X(j) -2*Vs(j)*miu(j)*C(j)*kk]/(2*pi*f(i)); E22{j}=vpa(E22{j},5); end %¼ÆËã¶Ô½ÇÏòÁ¿ for j=1:1:5 digits(6); Ad11(j)=vpa(exp(-D(j)*(Z(j+1)-Z(j)))); Ad22(j)=exp(-C(j)*(Z(j+1)-Z(j))); Ad22(j)=vpa(Ad22(j)); Ad{j}=[Ad11(j) 0;0 Ad22(j)]; end %¼ÆËãÐÞ¸ÄϵÊý for j=1:1:4 digits(6); Au11(j)=vpa(exp(-D(j+1)*(Z(j+2)-Z(j+1)))); Au22(j)=vpa(exp(-C(j+1)*(Z(j+2)-Z(j+1)))); Au{j}=[Au11(j) 0;0 Au22(j)]; EE1{j}=[E11{j+1} -E12{j};E21{j+1} -E22{j}]^(-1); EE1{j}=vpa(EE1{j}); EE2{j}=[E11{j} -E12{j+1};E21{j} -E22{j+1}]; Add{j}=[Ad{j} AAA;AAA Au{j}]; MRT{j}=vpa(EE1{j}*EE2{j}*Add{j}); Tdd{j}=[MRT{j}(1) MRT{j}(5);MRT{j}(2) MRT{j}(6)]; Rud{j}=[MRT{j}(9) MRT{j}(13);MRT{j}(10) MRT{j}(14)]; Rrdu{j}=[MRT{j}(3) MRT{j}(7);MRT{j}(4) MRT{j}(8)]; Tu{j}=[MRT{j}(11) MRT{j}(15);MRT{j}(12) MRT{j}(16)]; end %¼ÆËãµÚN²ãÐÞÕýϵÊý digits(6); EE1{5}=[E11{6} -E12{5};E21{6} -E22{5}]^(-1); EE2{5}=[E11{5}*Ad{5};E21{5}*Ad{5}]; MRT{5}=vpa(EE1{5}*EE2{5}); %¼ÆËã¹ãÒåÐÞÕýϵÊý Rdu{5}=[MRT{5}(3) MRT{5}(7);MRT{5}(4) MRT{5}(8)]; for k=1:1:4 Rdu{k}=AAA; end for j=4:-1:1 digits(4); Rud{j}=vpa(Rud{j}); Tdd{j}=vpa(Tdd{j}); Tu{j}=vpa(Tu{j}); Rdu{j+1}=vpa(Rdu{j+1}); Td{j}=vpa((I-Rud{j}*Rdu{j+1})^(-1)*Tdd{j}); Rdu{j}=vpa(Rrdu{j}+Tu{j}*Rdu{j+1}*Td{j}); end end ´óÉñ°ï濴һϣº³ÌÐòÔÚÔËËãµ½×îºóÒ»¸öj=4£º-1:1µÄÑ»·£¬Ö»ÄÜËãÒ»¸öÑ»·¼´µ±jËãµ½3ʱ¾ÍËã²»ÏÂÈ¥ÁË¡£ÎÒÊÔ×Å¿´ÁËһϣ¬µÚÒ»¸öÑ»·µÄ½á¹ûTd{4},Rdu{4}Êä³öʱÏÔʾ¡°MATLABÊä³öÒѽضϡ£Îı¾³¬³öÃüÁîÐд°¿ÚÏÔʾµÄÐ㤶È,×î¶àΪ 25,000 ¸ö×Ö·û¡±£¬ÕâÊDz»ÊÇ˵Ã÷ÎҵijÌÐòÓдíÎ󣬻¹Íû´óÉñÃǰïæ¿´Ò»Ï£¬¸Ð¼¤²»¾¡£¡£¡£¡1 |
» ²ÂÄãϲ»¶
Сľ³æÃ»ÂäÁË£¬³ýÁËÆíµ»Ìû×Ó£¬¼¸ºõ¿´²»µ½ÓмÛÖµµÄÌû×Ó
ÒѾÓÐ15È˻ظ´
ÃæÉϵÄË®ºÜÉî
ÒѾÓÐ18È˻ظ´
¹úÉç¿ÆÍ¨Ñ¶ÆÀÉó
ÒѾÓÐ5È˻ظ´
5¸ö%2F£¬·Ç¹Ì¶¨¶Î22¸ö×Öĸ
ÒѾÓÐ9È˻ظ´
ÉúÃü¿ÚC13ÃæÉÏ»áÆÀʱ¼ä
ÒѾÓÐ11È˻ظ´
ÄÚÐÄØÑ·¦
ÒѾÓÐ16È˻ظ´
ÉúÃü¿ÚÃæÉÏ»áÆÀ½áÊøÁËÂð´ó¼ÒÓÐÖªµÀ½á¹ûÂð£¿ÏÖÔÚ»¹Ã»Óнá¹ûÕý³£²»£¿
ÒѾÓÐ9È˻ظ´
ͶӢÎÄÆÚ¿¯ÈçºÎ²éÖØ
ÒѾÓÐ6È˻ظ´
²»ÒªÔÙÊý¹ú×ÔÈ»ÉêÇëÊéµÄ filecode µÄ·Ö¸ô·û¸öÊýÁË
ÒѾÓÐ21È˻ظ´
²®°·Éϼ׻ùÇóÖú
ÒѾÓÐ7È˻ظ´











»Ø¸´´ËÂ¥
10