This is how I generate .eps/.pdf/.png files for publications. This will produce nice vector figures and rasters at a nice crispy 300 DPI
Add this to the top of your script
fontname = 'Arial'; % or your favorite font, IEEE prefers Arial in figures. Helvetica is also sexy.
set(0,'DefaultAxesFontName',fontname,'DefaultTextFontName',fontname);
set(0,'DefaultAxesFontSize',8);