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Scattered stuff from Silas during Dissertation

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This commit is contained in:
Silas Oettinghaus
2026-06-03 09:05:33 +02:00
parent a91da3b97c
commit 5c2e27687d
37 changed files with 1726 additions and 1338 deletions
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158
Functions/EQ_visuals/show2Dconstellation.m
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@@ -4,6 +4,12 @@ arguments
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
options.color = [];
options.clear = true;
options.rasterize = false;
options.raster_resolution (1,1) double = 1000;
options.raster_markersize (1,1) double = 1;
options.raster_clim = [];
end
plot_shit = 1;
@@ -22,7 +28,9 @@ if plot_shit
fig = figure; % Create a new figure and get its handle
else
fig = figure(options.fignum); % Use the specified figure number
clf;
if options.clear
clf;
end
end
end
@@ -31,6 +39,8 @@ rx_symbols = eq_signal; %./ rms(eq_signal);
correct_symbols = ref_symbols;
col = cbrewer2('Paired',numel(unique(correct_symbols))*3);
useDefaultColormap = isempty(options.color);
scatterColor = options.color;
ccnt = -1;
levels = unique(correct_symbols);
@@ -66,20 +76,146 @@ D = sqrt(D_even.^2 + D_odd.^2);
[X,Y] = meshgrid(levels, levels);
[X_,Y_] = meshgrid(statistical_mean, statistical_mean);
plot_xlim = [floor(min(X_(:)))-1, ceil(max(X_(:)))+1];
plot_ylim = [floor(min(Y_(:)))-1, ceil(max(Y_(:)))+1];
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]);
if isempty(options.displayname)
displayName = ['Even/Odd PAM-',num2str(M)];
else
displayName = options.displayname;
end
if useDefaultColormap
cols = flip(cbrewer2('RdYlBu',100));
cols=(cbrewer2("RdYlBu",4096));
% cols(45:55,:) = [];
colormap(gca,cols);
if isempty(options.raster_clim)
cLim = [0 max(D).*0.45];
else
cLim = options.raster_clim;
end
if cLim(2) <= cLim(1)
cLim(2) = cLim(1) + eps;
end
clim(cLim);
% colormap(gca,'hsv');
if options.rasterize
nBins = options.raster_resolution;
xEdges = linspace(plot_xlim(1),plot_xlim(2),nBins+1);
yEdges = linspace(plot_ylim(1),plot_ylim(2),nBins+1);
xBin = discretize(rx_even,xEdges);
yBin = discretize(rx_odd,yEdges);
valid = ~isnan(xBin) & ~isnan(yBin) & isfinite(D);
yticks((levels(1:end-1) + levels(2:end)) / 2);
xticks((levels(1:end-1) + levels(2:end)) / 2);
countImg = accumarray([yBin(valid), xBin(valid)],1,[nBins nBins],@sum,0);
dImg = accumarray([yBin(valid), xBin(valid)],D(valid),[nBins nBins],@mean,NaN);
countImgRaw = countImg;
markerRadius = max(0, round((options.raster_markersize - 1) / 2));
if markerRadius > 0
kernel = ones(2*markerRadius+1);
countImg = conv2(countImg,kernel,'same');
weightedD = dImg;
weightedD(~isfinite(weightedD)) = 0;
weightedD = conv2(weightedD .* countImgRaw,kernel,'same');
dWeight = conv2(isfinite(dImg) .* countImgRaw,kernel,'same');
dImg = weightedD ./ dWeight;
end
colorIdx = round((dImg-cLim(1)) ./ diff(cLim) * (size(cols,1)-1)) + 1;
colorIdx = min(max(colorIdx,1),size(cols,1));
density = log1p(countImg);
if max(density(:)) > 0
density = density ./ max(density(:));
end
rgbImg = ones(nBins,nBins,3);
for rgbIdx = 1:3
colorPlane = reshape(cols(colorIdx,rgbIdx),nBins,nBins);
colorPlane(~isfinite(dImg)) = 1;
rgbImg(:,:,rgbIdx) = (1-density) + density .* colorPlane;
end
hImg = image(linspace(plot_xlim(1),plot_xlim(2),nBins), ...
linspace(plot_ylim(1),plot_ylim(2),nBins), ...
rgbImg);
hImg.HandleVisibility = 'off';
set(gca,'YDir','normal');
uistack(hImg,'bottom');
plot(nan,nan,'.','DisplayName',displayName,'MarkerEdgeColor',col(2,:));
else
sz = ones(1,length(D)).*1;
scatter(rx_even,rx_odd,sz,D,'.','DisplayName',displayName);
end
rxLevelColor = col(6,:);
else
if options.rasterize
nBins = options.raster_resolution;
xEdges = linspace(plot_xlim(1),plot_xlim(2),nBins+1);
yEdges = linspace(plot_ylim(1),plot_ylim(2),nBins+1);
xBin = discretize(rx_even,xEdges);
yBin = discretize(rx_odd,yEdges);
valid = ~isnan(xBin) & ~isnan(yBin);
countImg = accumarray([yBin(valid), xBin(valid)],1,[nBins nBins],@sum,0);
markerRadius = max(0, round((options.raster_markersize - 1) / 2));
if markerRadius > 0
kernel = ones(2*markerRadius+1);
countImg = conv2(countImg,kernel,'same');
end
density = log1p(countImg);
if max(density(:)) > 0
density = density ./ max(density(:));
end
rgbImg = ones(nBins,nBins,3);
for rgbIdx = 1:3
rgbImg(:,:,rgbIdx) = (1-density) + density .* scatterColor(rgbIdx);
end
hImg = image(linspace(plot_xlim(1),plot_xlim(2),nBins), ...
linspace(plot_ylim(1),plot_ylim(2),nBins), ...
rgbImg);
hImg.HandleVisibility = 'off';
set(gca,'YDir','normal');
uistack(hImg,'bottom');
plot(nan,nan,'.','DisplayName',displayName,'MarkerEdgeColor',scatterColor);
else
scatter(rx_even,rx_odd,5*ones(1,length(D)),'.','DisplayName',displayName,'MarkerEdgeColor',scatterColor);
end
rxLevelColor = scatterColor;
end
scatter(X_(:), Y_(:), 2, 'x', 'LineWidth', 10, 'MarkerEdgeColor', rxLevelColor,'DisplayName',[displayName, ' Rx Levels']);
scatter(X(:), Y(:), 2, 'x', 'LineWidth', 10, 'MarkerEdgeColor', col(4,:),'DisplayName','Tx Levels');
xlim(plot_xlim);
ylim(plot_ylim);
decisionBoundaries = (levels(1:end-1) + levels(2:end)) / 2;
ax = gca;
xticks(levels);
yticks(levels);
xticklabels(compose('%g',levels));
yticklabels(compose('%g',levels));
try
ax.XAxis.MinorTickValues = decisionBoundaries;
ax.YAxis.MinorTickValues = decisionBoundaries;
end
ax.XMinorTick = 'on';
ax.YMinorTick = 'on';
ax.XMinorGrid = 'on';
ax.YMinorGrid = 'on';
ax.GridLineStyle = '--';
ax.MinorGridLineStyle = ':';
ax.GridColor = [0.65 0.65 0.65];
ax.MinorGridColor = [0.35 0.35 0.35];
ax.GridAlpha = 0.35;
ax.MinorGridAlpha = 0.45;
legend
xlabel('even symbols');
ylabel('odd symbols');
axis equal; grid on;
axis equal;
grid on;
grid minor;
ax.Layer = 'top';
end