+++ Changes +++

+ duobinary_target now supports memoryless decoding (FFE targets DB response without MLSE) + PAMmapper.quantize now supports custom constellations for quantization + Added a new folder 'Documentations' for pdfs, slides, etc. + Added new FSO evaluation scripts in projects/FSO transmission/Evaluation Scripts + Added ffe_db (rudimentary module, not important anymore)
2026-03-05 10:41:21 +01:00
parent 2a724b833f
commit 3676d92b30
32 changed files with 2307 additions and 232 deletions
--- a/projects/FSO_transmission/Evaluation
+++ b/projects/FSO_transmission/Evaluation
@@ -0,0 +1,149 @@
+%%
+M = 4;
+current = 255;
+power = [8.4, 8.4, 42.3, 8.4, 8.4, 8.4, 8.4];
+rolloff = 0.6;
+baudrate = 4:1:10;
+baudrate_e = ["4e9", "5e9", "6e9", "7e9", "8e9", "9e9", "1e10"];
+
+num_pf_coeff = 4;
+taps_ffe = [300, 0, 0];
+taps_dfe = [0, 0, 0];
+trlength = 4096*4;
+filter_length = 210;
+
+x = 4:1:10;
+num_currents = length(x);
+num_signals = 18;
+num_eq_methods = 4;
+BER_PAM_2 = zeros(num_currents,num_signals);
+save_name = "BER_PAM_4_Waitbar_Test";
+
+% ---------------- Progressbar Setup ----------------
+totalRuns = num_eq_methods * num_currents * num_signals;
+runCount  = 0;
+
+h = waitbar(0, 'Starte Simulation...', 'Name', 'FSO Simulation Progress');
+tStart = tic;
+
+% Optional: nur alle N Schritte UI updaten (reduziert Overhead)
+updateEvery = 1;  % z.B. 10 setzen, wenn es extrem viele Iterationen werden
+% ---------------------------------------------------
+
+try
+    for eq_method = 1:1:4
+        num_current_iteration = 1;
+        for i = 1:num_currents
+            for num_signal = 1:1:num_signals
+
+                % --- Dein eigentlicher Run ---
+                try
+                    BER_run = first_analysis_fso(current, power(i), baudrate(i), baudrate_e(i), rolloff, ...
+                                num_pf_coeff, taps_ffe, taps_dfe, M, trlength, eq_method, filter_length, num_signal);
+                catch
+                    BER_run = NaN;
+                end
+                BER_PAM_2(num_current_iteration, num_signal) = BER_run;
+                % -----------------------------
+
+                % --- Progress updaten ---
+                runCount = runCount + 1;
+
+                if mod(runCount, updateEvery) == 0 || runCount == 1 || runCount == totalRuns
+                    frac = runCount / totalRuns;
+
+                    elapsed = toc(tStart);
+                    if frac > 0
+                        remaining = elapsed * (1/frac - 1);
+                    else
+                        remaining = NaN;
+                    end
+
+                    msg = sprintf(['EQ %d/4 | i %d/%d | Signal %d/%d\n' ...
+                                   'Gesamt %d/%d (%.1f %%) | ETA ~ %.1f min'], ...
+                                   eq_method, i, num_currents, num_signal, num_signals, ...
+                                   runCount, totalRuns, 100*frac, remaining/60);
+
+                    waitbar(frac, h, msg);
+
+                    % Falls jemand das waitbar-Fenster schließt: sauber abbrechen
+                    if ~ishandle(h)
+                        error('Progressbar wurde geschlossen. Abbruch durch Nutzer.');
+                    end
+                end
+                % ------------------------
+
+            end
+            num_current_iteration = num_current_iteration + 1;
+        end
+
+        save('C:\Users\magf\Desktop\Desktop\Projekte\FSO\Data\' + save_name + "_" + string(eq_method) + '.mat', 'x', 'BER_PAM_2')
+        BER_PAM_2 = zeros(num_currents, num_signals);
+    end
+
+catch ME
+    % Falls irgendwas schiefgeht: waitbar schließen und Fehler weiterwerfen
+    if exist('h','var') && ishandle(h)
+        close(h);
+    end
+    rethrow(ME);
+end
+
+% Clean exit
+if exist('h','var') && ishandle(h)
+    close(h);
+end
+
+%%
+x = 4:1:10;
+save_name = "BER_PAM_4_Waitbar_Test";
+figure(202120); clf; hold on; grid on;
+for k = 1:4
+    BER_min = zeros(1,length(x));
+    BER_avg = zeros(1,length(x));
+    BER_max = zeros(1,length(x));
+
+    tmp = load('C:\Users\magf\Desktop\Desktop\Projekte\FSO\Data\' + save_name + "_" + string(k) + '.mat');
+    BER = tmp.BER_PAM_2;
+
+    for i = 1:length(x)
+        BERs = BER(i,:);
+        BER_min(i) = min(BERs);
+        BER_avg(i) = mean(BERs);
+        BER_max(i) = max(BERs);
+    end
+
+    err_low  = BER_avg - BER_min;
+    err_high = BER_max - BER_avg;
+    errorbar(x, BER_avg, err_low, err_high, '-o', 'LineWidth', 1.75);
+end
+
+old_BER = [-1.5, -1.75, -2, -2.3, -2.6, -2.25, -1.95];
+old_BER = 10.^(old_BER);
+plot(x, old_BER, '-o','LineWidth',1.75)
+
+h1 = yline(2e-2,  ':k', 'LineWidth',1.5);
+h2 = yline(3.8e-3,':b', 'LineWidth',1.5);
+h3 = yline(4.85e-3,':g', 'LineWidth',1.5);
+h4 = yline(2.2e-4,':r', 'LineWidth',1.5);
+
+% Legende NUR für Kurven
+legend('FFE', 'FFE+PF+MLSE', 'DB', 'ML-MLSE', 'BER Paper', ...
+       'Interpreter','latex', ...
+       'Location','southwest', 'FontSize', 14)
+
+% FEC Labels direkt im Plot
+text(221,2.2e-2,'o-FEC','Color','k','FontSize', 14, 'Interpreter','latex')
+text(221,3.3e-3,'HD-FEC','Color','b','FontSize', 14, 'Interpreter','latex')
+text(221,5.4e-3,'KP4+Hamming','Color','g','FontSize', 14,'Interpreter','latex')
+text(231,2.4e-4,'KP4','Color','r','FontSize', 14,'Interpreter','latex')
+
+xlabel('Laser Bias Current [mA]', 'Interpreter','latex')
+ylabel('BER', 'Interpreter','latex')
+% title('BER for PAM-2', 'Interpreter','latex')
+
+grid minor
+ylim([1e-4 5e-1])
+set(gca,'YScale','log')
+% beautifyBERplot
+hold off