4099f6820f
WDM code added (Pol Cont., Opt MUX/DEMUX, Opt Atten, DP_Fiber) -> the codebase is not optimized to always work with dp signals!
86 lines
2.2 KiB
Matlab
86 lines
2.2 KiB
Matlab
function [symbols_for_lvl,avg_for_lvl] = show2Dconstellation(eq_signal,ref_symbols,options)
|
|
arguments
|
|
eq_signal
|
|
ref_symbols
|
|
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
|
|
|
|
plot_shit = 1;
|
|
|
|
if isa(eq_signal,'Signal')
|
|
eq_signal = eq_signal.signal;
|
|
end
|
|
if isa(ref_symbols,'Signal')
|
|
ref_symbols = ref_symbols.signal;
|
|
end
|
|
|
|
|
|
if plot_shit
|
|
% 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
|
|
clf;
|
|
end
|
|
end
|
|
|
|
|
|
rx_symbols = eq_signal; %./ rms(eq_signal);
|
|
correct_symbols = ref_symbols;
|
|
|
|
col = cbrewer2('Paired',numel(unique(correct_symbols))*2);
|
|
ccnt = -1;
|
|
|
|
levels = unique(correct_symbols);
|
|
M = numel(levels);
|
|
symbols_for_lvl = NaN(numel(levels),length(correct_symbols));
|
|
start = 1;
|
|
ende = length(correct_symbols);
|
|
|
|
|
|
|
|
|
|
for l = 1:numel(levels)
|
|
ccnt = ccnt+2;
|
|
|
|
level_amplitude = levels(l);
|
|
|
|
symbols_for_lvl(l,correct_symbols==level_amplitude) = rx_symbols(correct_symbols==level_amplitude);
|
|
|
|
statistical_mean(l) = mean(symbols_for_lvl(l,:),'omitnan');
|
|
|
|
end
|
|
|
|
tx_even = correct_symbols(1:2:end);
|
|
tx_odd = correct_symbols(2:2:end);
|
|
|
|
rx_even = rx_symbols(1:2:end);
|
|
rx_odd = rx_symbols(2:2:end);
|
|
|
|
D_even = tx_even - rx_even;
|
|
D_odd = tx_odd - rx_odd;
|
|
|
|
D = sqrt(D_even.^2 + D_odd.^2);
|
|
|
|
[X,Y] = meshgrid(levels, levels);
|
|
[X_,Y_] = meshgrid(statistical_mean, statistical_mean);
|
|
|
|
hold on;
|
|
scatter(rx_even,rx_odd,5*ones(1,length(D)),D,'.','DisplayName',['Even/Odd PAM-',num2str(M)],'MarkerEdgeColor',col(2,:));
|
|
% colormap(gca,flip(cbrewer2('Spectral',100)))
|
|
colormap(gca,'hsv');
|
|
scatter(X_(:), Y_(:), 2, 'x', 'LineWidth', 10, 'MarkerEdgeColor', col(6,:),'DisplayName','Statistical Rx Levels');
|
|
scatter(X(:), Y(:), 2, 'x', 'LineWidth', 10, 'MarkerEdgeColor', col(4,:),'DisplayName','Tx Levels');
|
|
xlim([floor(min(X_(:)))-1, ceil(max(X_(:)))+1]);
|
|
ylim([floor(min(Y_(:)))-1, ceil(max(Y_(:)))+1]);
|
|
|
|
yticks((levels(1:end-1) + levels(2:end)) / 2);
|
|
xticks((levels(1:end-1) + levels(2:end)) / 2);
|
|
legend
|
|
xlabel('even symbols');
|
|
ylabel('odd symbols');
|
|
axis equal; grid on;
|
|
end
|