cpmlPerformanceTest.m

% 
% Test Performance of cpml
%
clear;

%% reference computing
zZoneSize=60;
tZoneSize=30;
fdtd1dCPML;
aEx=cEx;
save refRes aEx;

%% reflect computing
zZoneSize=10;
tZoneSize=30;
fdtd1dCPML;

%% performance analysis
t=(1:totalTimeStep)*dt;
load refRes aEx;
relativeError=abs(cEx-aEx)/max(abs(aEx));
dbError=20*log10(relativeError);
% comparision of Ex in time
figure('NumberTitle','OFF','Name','Time Macthing');
plot(t/1e-9,aEx,t/1e-9,cEx,'--','LineWidth',2);
xlabel('time (ns)');
ylabel('Ez');
grid on;
title('time domain compare');
legend('analysis','cpml');
%print -depsc -tiff -r300 cpml1dTimeCompare_r
%print -dtiff -r300 cpml1dTimeCompare_r
% Relative Error
figure('NumberTitle','OFF','Name','Relative Error');
semilogy(t/1e-9,relativeError,'LineWidth',2);
xlabel('time (ns)');
ylabel('Relative Error');
grid on;
title('Relative Error');
%print -depsc -tiff -r300 cpml1dRelativeError_r
%print -dtiff -r300 cpml1dRelativeError_r
% Error in DB
figure('NumberTitle','OFF','Name','DB Error');
plot(t/1e-9,dbError,'LineWidth',2);
xlabel('time (ns)');
ylabel('Error (DB)');
grid on;
title('DB Error');
%print -depsc -tiff -r300 cpml1dDBError_r
%print -dtiff -r300 cpml1dDBError_r