Add Micro-station model

config.tex

@@ -12,10 +12,12 @@
 \DeclareSIUnit\px{px}
 \DeclareSIUnit\rms{rms}
 
+\usepackage{amssymb}
 \usepackage{amsmath}
 \usepackage{amsthm}
 \usepackage{bm}
 \usepackage{dsfont}
+\usepackage{empheq} % for drawing boxes around equations
 
 \let\originalleft\left
 \let\originalright\right