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Commit before first big baudrate sweep

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This commit is contained in:
Silas Labor Zizou
2024-10-24 19:41:59 +02:00
parent cfd1bdb513
commit bafc7f12b7
11 changed files with 588 additions and 318 deletions
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31
projects/Lab_2024/bias_sweep_evaluation.m
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@@ -1,6 +1,8 @@
filename = "C:\Users\Silas\Nextcloud4\Dokumente\02_Ablage_Office\Lab_Data_24\bias_sweep\PAM4_10km_ffe__wh.mat";
filename = "C:\Users\sioe\Documents\High_Speed_Measurement_2024\bias_testing\PAM4_b2b_bias_sweep_20241023_130342_wh.mat";
a = load(filename);
wh2 = a.obj;
@@ -9,13 +11,19 @@ m = wh2.getStoValue('m',wh2.parameter.vbias.values(1),wh2.parameter.awg_vpp.valu
v_bias_vals = wh2.parameter.vbias.values;
awg_vpp_vals = wh2.parameter.awg_vpp.values;
bers = [];
ber_ffe= [];
ber_mlse= [];
rop_measured= [];
pd_in_measured= [];
rop_measured = [];
cnt = 0;
for awg_vpp_cur = awg_vpp_vals
cnt = cnt+1;
bers(cnt,:) = wh2.getStoValue('ber',v_bias_vals,awg_vpp_cur);
ber_ffe(cnt,:) = wh2.getStoValue('ber_ffe',v_bias_vals,awg_vpp_cur)';
ber_mlse(cnt,:) = wh2.getStoValue('ber_mlse',v_bias_vals,awg_vpp_cur);
rop_measured(cnt,:) = wh2.getStoValue('rop',v_bias_vals,awg_vpp_cur);
pd_in_measured(cnt,:) = wh2.getStoValue('pd_in',v_bias_vals,awg_vpp_cur);
end
[bestber,bestindex] = min(bers,[],'all');
@@ -25,6 +33,23 @@ bestvbias=v_bias_vals(v_bias_pos);
disp(['Best Vpp: ',num2str(bestvbias),' V; Best Vpp AWG: ',num2str(bestawgvpp),' V' ])
figure(100)
hold on
plot(v_bias_vals,ber_ffe,'DisplayName',['FFE only']);
plot(v_bias_vals,ber_mlse,'DisplayName',['MLSE']);
yline(3.8e-3, 'DisplayName', 'HD-FEC', 'LineStyle', '--', 'HandleVisibility', 'off');
xlabel('V bias');
ylabel('Bit Error Rate (BER)');
title('Bit Error Rate vs. V bias');
set(gca, 'yscale', 'log');
set(gca, 'Box', 'on');
grid on;
grid minor;
legend('Interpreter', 'none');
figure();
sgtitle(['PAM ', num2str(m)])
subplot1 = subplot(1,2,1);