[AMR] Add feedback loops

electives/amr/parts/00_basics/01_measurement-models.tex

@@ -4,3 +4,6 @@ $\vec{b}_C$ const bias, $\vec{b}$ time bias, $\mat{M}$ missal., $\vec{n} \sim \c
 
 \hl{Finding}: Is in $W$-frame: may need $\mat{T}_{BW}$ or $\mat{R}_{BW}$.
 Also see Sec.~\ref{sec:sensors}
+
+Feedback loop:
+\includegraphics[width=0.6\columnwidth]{assets/loop-main.png}