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239 lines
6.7 KiB
TeX
239 lines
6.7 KiB
TeX
\documentclass[showdate=false]{beamer}
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\usepackage[british]{babel}
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\usepackage{amsmath}
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\usepackage{hyperref}
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\usepackage[backend=bibtex,style=trad-plain]{biblatex}
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\usepackage{appendixnumberbeamer}
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\usepackage{graphicx}
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\graphicspath{{.}{./figures/}{../../figures/}}
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\usepackage{todo}
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\addbibresource{../../../bibliotheca/bibliography.bib}
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% Disable Captions
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\setbeamertemplate{caption}{\raggedright\small\insertcaption\par}
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% no to navigation, yes to frame numbering
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\beamertemplatenavigationsymbolsempty
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\setbeamerfont{page number in head/foot}{size=\normalsize}
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\setbeamertemplate{footline}[frame number]
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\title[]{Early contest STEP-UP}
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\date{March $13^{\text{\tiny{th}}}$, 2023}
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\author{E.T. de Boone}
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\begin{document}
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\frame{\titlepage}
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% Context
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%%%%%%%%%
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\begin{frame}{Airshowers from Ultra High Energy particles}
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academic curriculum?
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\begin{figure}
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\includegraphics[width=\textwidth]{grand/astroparticletypes_grand.jpg}
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\end{figure}
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\end{frame}
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\begin{frame}{Radio signals and Airshowers}
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\begin{columns}
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\begin{column}{0.4\textwidth}
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Airshower split into EM, Muon and Hadron
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\end{column}
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\begin{column}{0.5\textwidth}
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\begin{figure}
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\centering
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\includegraphics[width=\textwidth]{1607.08781/fig02a_airshower+detectors.png}
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% \caption{
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% \cite{Schroder:2016hrv}
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% }
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\end{figure}
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\end{column}
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\end{columns}
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\begin{figure}
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\centering
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\includegraphics<2>[width=\textwidth]{airshower/airshower_radio_polarisation.jpg}%
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\end{figure}
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\end{frame}
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\begin{frame}{Radio Interferometry: Concept}
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\begin{columns}
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\begin{column}{0.4\textwidth}
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\begin{figure}
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\includegraphics[width=\textwidth]{radio_interferometry/Schematic_RIT_extracted.png}
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\end{figure}
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\end{column}
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\begin{column}{0.6\textwidth}
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\vspace*{\fill}
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\begin{itemize}
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\item<1-> Measure signal $S_i(t)$ at antenna $\vec{a_i}$
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\item<2-> Calculate light travel time \\[5pt]
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$\Delta_i(\vec{x}) = \frac{ \left| \vec{x} - \vec{a_i} \right| }{c} n_{eff}$
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\item<2-> Sum waveforms accounting \\
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for time delay \\[5pt]
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$S(\vec{x}, t) = \sum S_i( t + \Delta_i(\vec{x}) )$
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\end{itemize}
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\vspace*{\fill}
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\begin{figure}% Spatially
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\includegraphics<1>[width=0.8\textwidth]{radio_interferometry/single_trace.png}%
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\includegraphics<2>[width=0.8\textwidth]{radio_interferometry/trace_overlap_bad.png}%
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\includegraphics<3>[width=0.8\textwidth]{radio_interferometry/trace_overlap_medium.png}%
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\includegraphics<4>[width=0.8\textwidth]{radio_interferometry/trace_overlap_best.png}%
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\end{figure}
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\end{column}
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\end{columns}
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\end{frame}
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% My Internship
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%%%%%%%%%%%%%%%
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\begin{frame}{Timing Constraint for Radio Interferometry}
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\vspace*{ -2em }
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Required time accuracy $< 1 \mathrm{ns}$ not provided by GNSS $ \gtrsim 5 \mathrm{ns}$.
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\vspace{ 2em }
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\begin{columns}
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\begin{column}{0.4\textwidth}
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Additional synchronisation
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using physics band
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\begin{itemize}
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\item Pulsed beacon
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\item Long period ($\sim 1 \mathrm{\mu s}$)% (AERA)
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\item<3-> Short period ($\lesssim 20 \mathrm{ns}$)
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\end{itemize}
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\end{column}
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\begin{column}{0.6\textwidth}
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\begin{figure}% Clock error fixes
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\includegraphics<1>[width=\textwidth]{radio_interferometry/trace_overlap/dc_grid_power_time_fixes.py.scale4d.best.trace_overlap.zoomed.repair_none.png}%
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\includegraphics<2>[width=\textwidth]{radio_interferometry/trace_overlap/dc_grid_power_time_fixes.py.scale4d.best.trace_overlap.zoomed.no_offset.png}%
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\includegraphics<3>[width=\textwidth]{radio_interferometry/trace_overlap/dc_grid_power_time_fixes.py.scale4d.best.trace_overlap.zoomed.repair_phases.png}%
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\includegraphics<4>[width=\textwidth]{radio_interferometry/trace_overlap/dc_grid_power_time_fixes.py.scale4d.best.trace_overlap.zoomed.repair_all.png}%
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\end{figure}
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\end{column}
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\end{columns}
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\end{frame}
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% Towards GRAND
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%%%%%%%%%%%%%%%%%%%%
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\begin{frame}{Advantages of Radio Interferometry}
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\begin{columns}
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\begin{column}{0.4\textwidth}
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\begin{itemize}
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\item Trace longitudinal development of airshower
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\item Lower SNR threshold
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\end{itemize}
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\end{column}
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\begin{column}{0.6\textwidth}
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\begin{figure}
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\includegraphics[width=\textwidth]{2006.10348/fig01.png}
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% \caption{
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% \cite{Schoorlemmer:2020low}
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% }
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\end{figure}
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\end{column}
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\end{columns}
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\end{frame}
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\begin{frame}{Physics Improvement of Radio Interferometry}
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composition measurement\\
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\vskip 1em
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direction reconstruction improved\\
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relevance for $\nu$s pointing back to sources
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% \visible<2->{
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% \vspace*{\fill}
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% \begin{center}
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% \begin{minipage}{.6\textwidth}
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% \hrule
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% \centering
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% \vspace{10pt}
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% \textit{Thank you!}
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% \end{minipage}
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% \end{center}
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% \vspace{\stretch{2}}
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% }
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\end{frame}
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%%%%%%%%%%%%%%%
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% Backup slides
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%%%%%%%%%%%%%%%
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\appendix
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\section{Supplemental material}
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\begin{frame}[c]
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\centering
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Supplemental material
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\end{frame}
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%%%%%%%%%
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\subsection{Single frequency beacon synchronisation}
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\begin{frame}{Short period beacon synchronisation}
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\begin{figure}
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\includegraphics<1>[width=\textwidth]{beacon/08_beacon_sync_timing_outline.pdf}%
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\includegraphics<2>[width=\textwidth]{beacon/08_beacon_sync_synchronised_outline.pdf}%
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\includegraphics<3>[width=\textwidth]{beacon/08_beacon_sync_synchronised_period_alignment.pdf}%
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\end{figure}
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\end{frame}
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\begin{frame}{Time resolving short period beacon}
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\begin{figure}
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\includegraphics<1>[width=\textwidth]{radio_interferometry/dc_grid_power_time_fixes.py.X400.repair_none.scale4d.pdf}
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\includegraphics<2>[width=\textwidth]{radio_interferometry/dc_grid_power_time_fixes.py.X400.repair_phases.scale4d.pdf}
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\includegraphics<3>[width=\textwidth]{radio_interferometry/dc_grid_power_time_fixes.py.X400.repair_all.scale4d.pdf}
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\includegraphics<4>[width=\textwidth]{radio_interferometry/dc_grid_power_time_fixes.py.X400.no_offset.scale4d.pdf}
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\end{figure}
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\end{frame}
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%%%%%%%%%%
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\subsection{GNSS clock stability}
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\begin{frame}{GNSS clock stability I}
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\begin{columns}
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\begin{column}{0.4\textwidth}
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\begin{figure}
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\centering
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\includegraphics[width=0.8\textwidth]{grand/setup/antenna-to-adc.pdf}
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\caption{
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GRAND Digitizer Unit's ADC to antennae
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}
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\end{figure}
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\end{column}
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\hfill
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\begin{column}{0.5\textwidth}
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\begin{figure}
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\includegraphics[width=\textwidth]{grand/setup/channel-delay-setup.pdf}%
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\caption{
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Channel filterchain delay experiment
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}
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\end{figure}
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\end{column}
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\end{columns}
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\end{frame}
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\begin{frame}{GNSS clock stability II}
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\begin{figure}
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\centering
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\includegraphics[width=0.7\textwidth]{grand/setup/grand-gps-setup.pdf}
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\caption{
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GNSS stability experiment
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}
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\end{figure}
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\end{frame}
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%%%%%%%%%%%%%%
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% Bibliography
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%%%%%%%%%%%%%%
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\section*{References}
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\begin{frame}{References}
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\printbibliography
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\end{frame}
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\end{document}
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