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testSA_IQ.m
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san=1;
if san==1
fwrite(vSA, 'INST SAN');
fwrite(vSA, 'CALC:UNIT:POW DBM');
fwrite(vSA, 'INIT:CONT OFF');
% perform sweep
fwrite(vSA, 'INIT;');
% wait for sweep to complete
fprintf(vSA, '*OPC?');
%fscanf(vSA, '%d');
fprintf(vSA, 'TRACE? TRACE1');
warning off;
line0=1;line1=0;
USB6525(sUSB,line0,line1);
read_values = Fun_SA(vSA,num_points);
spec21(:,:)=read_values.';
line0=0;line1=1;
USB6525(sUSB,line0,line1);
read_values = Fun_SA(vSA,num_points);
spec11(:,:)=read_values.';
figure(11)
subplot(1,2,1)
plot(spec21);
subplot(1,2,2)
plot(spec11);
end
%%
fwrite(vSA, 'INST IQ');
fwrite(vSA, 'INST IQ');
fwrite(vSA, 'CALC FORM RIM');
fwrite(vSA, 'CALC:UNIT:POW VOLT');
fwrite(vSA, 'DISP:TRAC:Y:MODE ABS');
%
%%
for n_test=1:1
fwrite(vSA, 'INIT:CONT OFF');
line0=1;line1=0;
USB6525(sUSB,line0,line1);
pause(0.2);
% perform sweep
tic
fwrite(vSA, 'INIT;');
% wait for sweep to complete
fprintf(vSA, '*OPC?');
fprintf(vSA, 'TRACE? TRACE1');
pause(1);
warning off;
read_values = fscanf(vSA,'%f,', 2.*num_points);
spec_real(:,:)=read_values(1:num_points);
spec_imag(:,:)=read_values(1+num_points:2*num_points);
specS21=spec_real+1i.*spec_imag;
line0=0;line1=1;
USB6525(sUSB,line0,line1);
fwrite(vSA, 'INIT:CONT OFF');
pause(0.2);
% perform sweep
tic
fwrite(vSA, 'INIT;');
% wait for sweep to complete
fprintf(vSA, '*OPC?');
fprintf(vSA, 'TRACE? TRACE1');
pause(1);
warning off;
read_values = fscanf(vSA,'%f,', 2.*num_points);
spec_real(:,:)=read_values(1:num_points);
spec_imag(:,:)=read_values(1+num_points:2*num_points);
toc
%
specS11=spec_real+1i.*spec_imag;
AbsspecS11=abs(specS11).^2;
specS11=sqrt(10.^((10*log10(AbsspecS11)+18.2)./10)).*exp(1i.*angle(specS11));
%
S11_test(:,n_test)=specS11;
S21_test(:,n_test)=specS21;
end;
%%
ABSS11_test=abs(S11_test); ABSS11_ave=sum(ABSS11_test.')./n_test;
PHS11_test=angle(S11_test); PHS11_ave=sum(PHS11_test.')./n_test;
ABSS21_test=abs(S21_test); ABSS21_ave=sum(ABSS21_test.')./n_test;
PHS21_test=angle(S21_test); PHS21_ave=sum(PHS21_test.')./n_test;
%%
figure(12)
subplot(2,1,1)
plot(abs(specS21),'k');hold on;
plot(abs(specS11),'r');hold off;
ylabel('Abs');
legend('|S21|','|S11|');
subplot(2,1,2)
plot(angle(specS21),'k');hold on;
plot(angle(specS11),'r');hold off;
ylabel('angle')
legend('arg(S21)','arg(S11)');
line0=1;line1=0;
USB6525(sUSB,line0,line1);
fwrite(vSA, 'INIT:CONT ON');
%%
figure(16)
subplot(4,1,1)
plot(ABSS11_ave);hold on
plot(ABSS11_ave2,'-.')
ylabel('s11')
subplot(4,1,2)
plot(ABSS21_ave);hold on
plot(ABSS21_ave2,'-.r')
ylabel('s21')
subplot(4,1,3)
plot(PHS11_ave);hold on
plot(PHS11_ave2,'-.')
ylabel('\angle s11')
subplot(4,1,4)
plot(PHS21_ave);hold on
plot(PHS21_ave2,'-.r')
ylabel('\angle s21')
%%
[cm,ci]=max(BestOBJ_allpass)
a1=A1_best_allpass(ci,:);
a2=A2_best_allpass(ci,:);
b1=B1_best_allpass(ci,:);
b2=B2_best_allpass(ci,:);
ph1=PH1_best_allpass(ci,:);
ph2=PH2_best_allpass(ci,:);
am1=AM1_best_allpass(ci,:);
am2=AM2_best_allpass(ci,:);
offs1=OF1_best_allpass(ci,:);
offs2=OF2_best_allpass(ci,:);
DPH=[0:10:360].*pi/180;
for ndph=1:length(DPH)
dph=DPH(ndph);
for n=1:n_od
sign1_od(n,:)=a1(n).*sin(n.*(2*pi.*Freq.*t+ph1+dph))+b1(n).*cos(n.*(2*pi.*Freq.*t+ph1+dph));
sign2_od(n,:)=a2(n).*sin(n.*(2*pi.*Freq.*t+ph2+dph))+b2(n).*cos(n.*(2*pi.*Freq.*t+ph2+dph));
end
% total signal
signal1=sum(sign1_od);
signal2=sum(sign2_od);
% normalized signal
signal_1n=signal1./max(abs(signal1));
signal_2n=signal2./max(abs(signal2));
% write signal to AFG
Fun_AFG(vFG,signal_1n,signal_2n,am1,am2,offs1,offs2);
%fclose(vFG);
fwrite(vSA, 'INIT:CONT OFF');
line0=1;line1=0;
USB6525(sUSB,line0,line1);
pause(0.2);
% perform sweep
tic
fwrite(vSA, 'INIT;');
% wait for sweep to complete
fprintf(vSA, '*OPC?');
fprintf(vSA, 'TRACE? TRACE1');
pause(1);
warning off;
read_values = fscanf(vSA,'%f,', 2.*num_points);
spec_real(:,:)=read_values(1:num_points);
spec_imag(:,:)=read_values(1+num_points:2*num_points);
specS21=spec_real+1i.*spec_imag;
line0=0;line1=1;
USB6525(sUSB,line0,line1);
fwrite(vSA, 'INIT:CONT OFF');
pause(0.2);
% perform sweep
fwrite(vSA, 'INIT;');
% wait for sweep to complete
fprintf(vSA, '*OPC?');
fprintf(vSA, 'TRACE? TRACE1');
pause(1);
warning off;
read_values = fscanf(vSA,'%f,', 2.*num_points);
spec_real(:,:)=read_values(1:num_points);
spec_imag(:,:)=read_values(1+num_points:2*num_points);
%
specS11=spec_real+1i.*spec_imag;
AbsspecS11=abs(specS11).^2;
specS11=sqrt(10.^((10*log10(AbsspecS11)+18.2)./10)).*exp(1i.*angle(specS11));
%
S11_ph(:,ndph)=specS11;
S21_ph(:,ndph)=specS21;
end
%%
figure(22)
plot(angle(S21_ph(1,:)));hold on;