\documentclass[../thesis.tex]{subfiles}

\graphicspath{
	{.}
	{../../figures/}
	{../../../figures/}
}

\begin{document}
\chapter{Introduction}
\label{sec:introduction}


\section{Cosmic Rays}
\label{sec:crs}

\subsection{Airshowers}
\label{sec:airshowers}

\subsection{Detectors}
\label{sec:detectors}
Standalone devices,
\gls*{PA},
\gls*{GRAND}

\subsubsection{Time Synchronisation}
\label{sec:timesynchro}
The main method of synchronising multiple stations is by employing a \gls{GNSS}.
This system should deliver timing with an accuracy in the order of $50\ns$ (see Section~\ref{sec:grand:gnss}).
\\

Need reference system with better accuracy to constrain (Figure~\ref{fig:reference-clock}).

\begin{figure}
	\centering
	\includegraphics[width=\textwidth]{clocks/reference-clock.pdf}
	\caption{
		Using a reference clock to compare two other clocks.
	}
	\label{fig:reference-clock}
	\todo{
		redo figure with less margins,
		remove spines,
		rotate labels
	}
\end{figure}


\subsection{Interferometry}
\label{sec:interferometry}
Requires $\sigma_t \lesssim 1\ns$


\end{document}