[求助]二维仿真PML吸收边界反射很明显，不知问题出在哪

for i=1:nx ~Fo`Pr_  
    for j=1:ny w$`u_P|@E:  
            if i>=npml+1&&i<=nx-npml&&j>=npml+1&&j<=ny-npml }mS Q!"f:  
                di=0; a?)g>e HN  
                dj=0; 5a/3nsup5  
                sigma_x(i,j)=0; +B7UGI  
                sigma_mx(i,j)=0; =H"%{VeC5  
                sigma_y(i,j)=0; bBQHxH}vi  
                sigma_my(i,j)=0; ]0pI6"  
            elseif i>=npml+1&&i<=nx-npml&&j<=npml qJ$S3B  
                di=0; y*8;T v|  
                dj=npml-j; T{ lm z<g  
                sigma_x(i,j)=0; S;BMM8U  
                sigma_mx(i,j)=0; 
<JZa  
                sigma_y(i,j)=sigma_max*(dj/npml)^n; yCv"(fNQ  
                sigma_my(i,j)=sigma_max*(dj/npml)^n*mu0/epsilon0; {h;i x  
                cax(i,j)=exp((-1)*sigma_x(i,j)*dt/epsilon0); vIFx'S~D  
                cay(i,j)=exp((-1)*sigma_y(i,j)*dt/epsilon0); 7>gW2m  
                cbx(i,j)=0; XX*f  
                cby(i,j)=(1-exp((-1)*sigma_y(i,j)*dt/epsilon0))/sigma_y(i,j); t5QGXj  
                dax(i,j)=exp((-1)*sigma_mx(i,j)*dt/mu0); AI .2os*  
                day(i,j)=exp((-1)*sigma_my(i,j)*dt/mu0); th=45y"C  
                dbx(i,j)=0; !)c0  
                dby(i,j)=(1-exp((-1)*sigma_my(i,j)*dt/mu0))/sigma_my(i,j); |\]pTA$2  
            elseif i>=npml+1&&i<=nx-npml&&j>=ny-npml+1 mHc2v==X\-  
                di=0; d%Ku'Jy  
                dj=npml+j-ny-1; :$QwOz^N*  
                sigma_x(i,j)=0; "H{#ib_c_  
                sigma_mx(i,j)=0; |h:3BV_  
                sigma_y(i,j)=sigma_max*(dj/npml)^n; $-)y59w"  
                sigma_my(i,j)=sigma_max*(dj/npml)^n*mu0/epsilon0; 'v@1_HHW\  
                cax(i,j)=exp((-1)*sigma_x(i,j)*dt/epsilon0); $'lJ_jL  
                cay(i,j)=exp((-1)*sigma_y(i,j)*dt/epsilon0); ^Cg@'R9  
                cbx(i,j)=0; os(}X(   
                cby(i,j)=(1-exp((-1)*sigma_y(i,j)*dt/epsilon0))/sigma_y(i,j); T{T> S%17~  
                dax(i,j)=exp((-1)*sigma_mx(i,j)*dt/mu0); dTVM !=  
                day(i,j)=exp((-1)*sigma_my(i,j)*dt/mu0); [ HjG
dC  
                dbx(i,j)=0; Z8pZm`g)T  
                dby(i,j)=(1-exp((-1)*sigma_my(i,j)*dt/mu0))/sigma_my(i,j); }Z
`@Z'  
            elseif i<=npml&&j>=npml+1&&j<=ny-npml Uzk_ae  
                di=npml-i; cr{dl\Na  
                dj=0; RHq r-%  
                sigma_x(i,j)=sigma_max*(di/npml)^n; uMBb=   
                sigma_mx(i,j)=sigma_max*(di/npml)^n*mu0/epsilon0; 73M;-qnU  
                sigma_y(i,j)=0; dRTpG
z  
                sigma_my(i,j)=0; Vb2")+*:  
                cax(i,j)=exp((-1)*sigma_x(i,j)*dt/epsilon0); H/ub=,Ej*  
                cay(i,j)=exp((-1)*sigma_y(i,j)*dt/epsilon0); CjA}-ee  
                cbx(i,j)=(1-exp((-1)*sigma_x(i,j)*dt/epsilon0))/sigma_x(i,j); W*D*\E  
                cby(i,j)=0; B^1Io9  
                dax(i,j)=exp((-1)*sigma_mx(i,j)*dt/mu0); H{;8i7%  
                day(i,j)=exp((-1)*sigma_my(i,j)*dt/mu0); U3w*z6OG  
                dbx(i,j)=(1-exp((-1)*sigma_mx(i,j)*dt/mu0))/sigma_mx(i,j); A3zNUad;  
                dby(i,j)=0; BCHI@a  
            elseif i>=nx-npml+1&&j>=npml+1&&j<=ny-npml tWdP5vfp  
                di=npml+i-nx-1; D7$xY\0r  
                dj=0; St1>J.k_  
                sigma_x(i,j)=sigma_max*(di/npml)^n; y] ~X{v  
                sigma_mx(i,j)=sigma_max*(di/npml)^n*mu0/epsilon0; 8\Eq(o}7  
                sigma_y(i,j)=0; ;}k_2mr~  
                sigma_my(i,j)=0; {XYf"ONi  
                cax(i,j)=exp((-1)*sigma_x(i,j)*dt/epsilon0); CY9`HQ1  
                cay(i,j)=exp((-1)*sigma_y(i,j)*dt/epsilon0); !Jo.Un7  
                cbx(i,j)=(1-exp((-1)*sigma_x(i,j)*dt/epsilon0))/sigma_x(i,j); ..^,*  
                cby(i,j)=0; ZP%Bu2xd  
                dax(i,j)=exp((-1)*sigma_mx(i,j)*dt/mu0); {c$%3iQq  
                day(i,j)=exp((-1)*sigma_my(i,j)*dt/mu0); SiJX5ydz  
                dbx(i,j)=(1-exp((-1)*sigma_mx(i,j)*dt/mu0))/sigma_mx(i,j); "?sLi  
                dby(i,j)=0; m<22E0=g  
            elseif i<=npml&&j<=npml II_MY#0X  
                di=npml-i; u"a$/  
                dj=npml-j; 2qkC{klC^M  
                sigma_x(i,j)=sigma_max*(di/npml)^n; Q_a%$a.rV  
                sigma_mx(i,j)=sigma_max*(di/npml)^n*mu0/epsilon0; wmPpE_{  
                sigma_y(i,j)=sigma_max*(dj/npml)^n; Iyvl6  
                sigma_my(i,j)=sigma_max*(dj/npml)^n*mu0/epsilon0; 7h/{F({r=  
                cax(i,j)=exp((-1)*sigma_x(i,j)*dt/epsilon0); mH3{<^Z6  
                cay(i,j)=exp((-1)*sigma_y(i,j)*dt/epsilon0); 9a_(_g>S  
                cbx(i,j)=(1-exp((-1)*sigma_x(i,j)*dt/epsilon0))/sigma_x(i,j); Bb/aeLv  
                cby(i,j)=(1-exp((-1)*sigma_y(i,j)*dt/epsilon0))/sigma_y(i,j); 0 .p $q  
                dax(i,j)=exp((-1)*sigma_mx(i,j)*dt/mu0); F[OBPPQ3  
                day(i,j)=exp((-1)*sigma_my(i,j)*dt/mu0); fmq^AnKd  
                dbx(i,j)=(1-exp((-1)*sigma_mx(i,j)*dt/mu0))/sigma_mx(i,j); on1mu't_;  
                dby(i,j)=(1-exp((-1)*sigma_my(i,j)*dt/mu0))/sigma_my(i,j); %K]nX#.B&  
            elseif i<=npml&&j>=ny-npml+1 6_a.`ehtj<  
                di=npml-i; qsL6*(S(r  
                dj=npml+j-ny-1; ?|Mmz@  
                sigma_x(i,j)=sigma_max*(di/npml)^n; ~LzTqMHM  
                sigma_mx(i,j)=sigma_max*(di/npml)^n*mu0/epsilon0; |m7`:~ow  
                sigma_y(i,j)=sigma_max*(dj/npml)^n; ]0:R^dHE  
                sigma_my(i,j)=sigma_max*(dj/npml)^n*mu0/epsilon0; 8 _[f#s`)  
                cax(i,j)=exp((-1)*sigma_x(i,j)*dt/epsilon0); :Zd# }P  
                cay(i,j)=exp((-1)*sigma_y(i,j)*dt/epsilon0); BF6H_g  
                cbx(i,j)=(1-exp((-1)*sigma_x(i,j)*dt/epsilon0))/sigma_x(i,j); QfM*K.7Sl  
                cby(i,j)=(1-exp((-1)*sigma_y(i,j)*dt/epsilon0))/sigma_y(i,j); ; bDFrG  
                dax(i,j)=exp((-1)*sigma_mx(i,j)*dt/mu0); !PrO~  
                day(i,j)=exp((-1)*sigma_my(i,j)*dt/mu0);
?hpk)Qu  
                dbx(i,j)=(1-exp((-1)*sigma_mx(i,j)*dt/mu0))/sigma_mx(i,j); l@YpgyqaL  
                dby(i,j)=(1-exp((-1)*sigma_my(i,j)*dt/mu0))/sigma_my(i,j); N,_ej@L8  
            elseif i>=nx-npml+1&&j<=npml Ljxn}):[  
                di=npml+i-nx-1; P.1iuZ "w  
                dj=npml-j; #Ryu`b  
                sigma_x(i,j)=sigma_max*(di/npml)^n; g@"6QAP  
                sigma_mx(i,j)=sigma_max*(di/npml)^n*mu0/epsilon0; X]*W +  
                sigma_y(i,j)=sigma_max*(dj/npml)^n; 4B}w;d@R  
                sigma_my(i,j)=sigma_max*(dj/npml)^n*mu0/epsilon0; _E[{7"3}  
                cax(i,j)=exp((-1)*sigma_x(i,j)*dt/epsilon0); |wj/lX7y  
                cay(i,j)=exp((-1)*sigma_y(i,j)*dt/epsilon0); ]QU52R@M  
                cbx(i,j)=(1-exp((-1)*sigma_x(i,j)*dt/epsilon0))/sigma_x(i,j); `ionMTZY  
                cby(i,j)=(1-exp((-1)*sigma_y(i,j)*dt/epsilon0))/sigma_y(i,j); 4%j&]PASa1  
                dax(i,j)=exp((-1)*sigma_mx(i,j)*dt/mu0); ;3sT>UB  
                day(i,j)=exp((-1)*sigma_my(i,j)*dt/mu0); 49Ue2=PP#  
                dbx(i,j)=(1-exp((-1)*sigma_mx(i,j)*dt/mu0))/sigma_mx(i,j); "WYcw\@U  
                dby(i,j)=(1-exp((-1)*sigma_my(i,j)*dt/mu0))/sigma_my(i,j); AjANuyUaP  
            elseif i>=nx-npml+1&&j>=ny-npml+1 @]#+`pZ4A  
                di=npml+i-nx-1; [%nG_np  
                dj=npml+j-ny-1; S8vmXlD  
                sigma_x(i,j)=sigma_max*(di/npml)^n; iVu+ct-iv  
                sigma_mx(i,j)=sigma_max*(di/npml)^n*mu0/epsilon0; .^.UJo;4G  
   &nb .. k*c:%vC!  
aLXA9?  

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