The Inkscape file (an FBMC transmitter)

Notice that the text in my Inkscape figure is not centered, it even looks rather unordered. This text will be converted to LaTeX afterwards and centering it is rather a trial and error process. It’s difficult to determine the ideal placement of your text at this stage.

After creating your Inkscape figure (with your LaTeX formulas), you should resize the page: File > Document Properties > Resize page to content… You can set all margins on 5 px for example.

Save your document as a pdf: File > Save As, choose a name and set the file type to Portable Document Format (*.pdf). In the next box that pops up, enable the PDF+LaTeX feature.

Inkscape will save two files: a pdf file and a pdf_tex file. The pdf file contains your drawings, whereas the pdf_tex file contains your LaTeX text. To see what the result looks like, you can use a short LaTeX document. Remember to include all packages you need for the text in the pdf_tex file. In my case, I need to include amssymb because I used \mathbb{C} in my Inkscape figure. For example:

\documentclass[10pt]{article}
\usepackage[utf8x]{inputenc}
\usepackage{amssymb}
\usepackage{graphicx}
 
\begin{document}
\begin{center}
\input{fbmc_transmitter.pdf_tex} %your pdf_tex file
\end{center}
\end{document}

If you’re creating a presentation, you should use \documentclass[10pt]{beamer} to look at the result. In this case another font is used. The font size is also up to you. Personally, I like to crop the generated pdf file from this example and use this file instead of the pdf_tex and pdf files exported by Inkscape. You can crop pdf files in Adobe Acrobat.

Fist of all, open a new figure in the Matlab command window:

fig1 = figure(1);

Resize the figure. Two subplots will be put next to each other, so make it broad enough. After this is done, the following code (based on this) is executed:

winsize = get(fig1,'Position');
winsize(1:2) = [0 0];
numframes = 351; % For CFO = 0:0.001:0.35
A = moviein(numframes,fig1,winsize);
set(fig1,'NextPlot','replacechildren')
 
for i=1:numframes
 
    % Plot the constellation diagram for FBMC
    subplot(1,2,1), plot(real(fbmccfo(:,i)),imag(fbmccfo(:,i)),'.');
	title('Received Constellation: FBMC');
	xlabel('In phase');
	ylabel('Quadrature');
	xlim([-1.5 1.5])
	ylim([-1.5 1.5])
 
    % Plot the constellation diagram for OFDM
    subplot(1,2,2), plot(real(ofdmcfo(:,i)),imag(ofdmcfo(:,i)),'.');
	title('Received Constellation: OFDM');
	xlabel('In phase');
	ylabel('Quadrature');
	xlim([-1.5 1.5])
	ylim([-1.5 1.5])
 
    A(:,i)=getframe(fig1,winsize);
end
 
mpgwrite(A,jet,'cfo.mpg');

The columns of fbmccfo and ofdmcfo contain the received constellation points when a certain CFO was added (CFO = 0:0.001:0.35). The resulting constellation movie cfo.mpg is shown right below.