Many changes towards simulation of JLT and once again the evaluation of the Highspeed data from Lab experiments 2024

Functions/EQ_visuals/showEQNoisePSD.m

@@ -41,4 +41,7 @@ end
         % Ensure a legend is displayed
         legend('show');
     end
+
+    xlim([-eq_noise.fs/2* 1e-9 eq_noise.fs/2* 1e-9]);
+
 end

Functions/EQ_visuals/showEQcoefficients.m

@@ -53,8 +53,8 @@ function showEQcoefficients(options)
 
     for i = 1:numSubplots
         subplot(1, numSubplots, i);
-        stem(coeffs{i}, 'Color', options.color, 'LineWidth', 0.1, ...
-             'Marker', '.', 'MarkerSize', 1);
+        stem(coeffs{i}, 'Color', options.color, 'LineWidth', 1, ...
+             'Marker', '.', 'MarkerSize', 10);
         title(titles{i});
         ylim([-1, 1]); % Set y-axis limits to [-1, 1]
         grid on;

Functions/EQ_visuals/showEQfilter.m

@@ -1,5 +1,12 @@
 
-function showEQfilter(coefficients,fs)
+function showEQfilter(coefficients,fs,options)
+
+arguments
+    coefficients 
+    fs 
+    options.fignum (1,1) double = NaN % Default to NaN if not provided
+    options.displayname (1,:) char = '' % Default to an empty string if not provided 
+end
 
     % Assuming that obj.e contains the final FFE filter coefficients.
     % Set the number of frequency points and sampling frequency.
@@ -12,24 +19,28 @@ function showEQfilter(coefficients,fs)
     half_nfft = floor(nfft/2) + 1;
     f = f(1:half_nfft);
     H = H(1:half_nfft);
-    
-    % Plot the magnitude and phase responses.
-    figure(339);
+
+    % Determine the figure number to use or create a new figure
+    if isnan(options.fignum)
+        fig = figure; % Create a new figure and get its handle
+    else
+        fig = figure(options.fignum); % Use the specified figure number
+    end
     
     % Magnitude response (in dB)
     subplot(2,1,1);
     hold on
-    plot(f.*1e-9, 20*log10(abs(1./H)));
+    plot(f.*1e-9, 20*log10(abs(1./H)),'DisplayName',options.displayname);
     title('(Inverted) Magnitude Response of FFE Filter');
-    xlabel('Frequency (Hz)');
+    xlabel('Frequency (GHz)');
     ylabel('Magnitude (dB)');
     grid on;
     
     % Phase response
     subplot(2,1,2);
-    plot(f.*1e-9, unwrap(angle(H)));
+    plot(f.*1e-9, unwrap(angle(H)),'DisplayName',options.displayname);
     title('Phase Response of FFE Filter');
-    xlabel('Frequency (Hz)');
+    xlabel('Frequency (GHz)');
     ylabel('Phase');
     grid on;
 

Functions/EQ_visuals/showLevelHistogram.m

@@ -20,10 +20,14 @@ end
         fig = figure(options.fignum); % Use the specified figure number
     end
 
+    eq_signal = max(min(eq_signal,3),-3);
+
     %%% Separate Classes
     constellation = unique(ref_symbols);
     received_sd = NaN(numel(constellation),length(ref_symbols));
-    lvlcol = cbrewer2('Set1',numel(constellation));
+    lvlcol = cbrewer2('Paired',numel(constellation)*2);
+    lvlcol = lvlcol(2:2:end,:);
+    % lvlcol = cbrewer2('Set1',numel(constellation));
     for lvl = 1:numel(constellation)
         %Separate the equalized signal into the
         %respective levels based on the actually
@@ -43,6 +47,7 @@ end
         histogram(received_sd(lvl,:),1000,"EdgeAlpha",0,'DisplayName',['Lvl ',num2str(lvl),' ; ',num2str(cnt(lvl)),' '],'FaceColor',lvlcol(lvl,:),'Normalization','pdf');
         warning on
     end
+    xlim([-3 3]);
     legend
     grid on
 

Functions/EQ_visuals/showLevelScatter.m

@@ -7,7 +7,7 @@ arguments
     options.f_sym = [];
 end
 
-plot_shit = 0;
+plot_shit = 1;
 
 if isa(eq_signal,'Signal')
     options.f_sym = eq_signal.fs;
@@ -25,6 +25,7 @@ if plot_shit
         fig = figure; % Create a new figure and get its handle
     else
         fig = figure(options.fignum); % Use the specified figure number
+        clf;
     end
 end
 
@@ -127,5 +128,6 @@ if plot_shit
 yline(levels);
 xlabel('Time in $\mu$s');
 ylabel('Normalized Amplitude');
+ylim([-3 3]);
 end
 end