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Initial commit for Group Meeting presentation
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figures/grand/split-cable/split-cable-delays-ch1ch2.pdf
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figures/grand/split-cable/split-cable-delays-ch1ch2.pdf
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figures/grand/split-cable/split-cable-delays-ch1ch3.pdf
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figures/grand/split-cable/split-cable-delays-ch1ch3.pdf
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figures/grand/split-cable/split-cable-delays-ch1ch4.pdf
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figures/grand/split-cable/split-cable-delays-ch1ch4.pdf
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\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{graphicx}
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\graphicspath{{.}{../../figures/}}
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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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% Show Section overview at beginning of section
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%\AtBeginSection[]
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%{
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% \begin{frame}<beamer>{Table of Contents}
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% \tableofcontents[currentsection, currentsubsection, sectionstyle=show/shaded, subsectionstyle=hide]
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% \end{frame}
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%}
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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[Grand DU]{Channel delays in the Grand Digitizer}
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\date{May 31, 2022}
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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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\begin{frame}{Wireless time distribution}
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\begin{block}{Current Timing Methods}
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\begin{itemize}
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\item GNSS (online)
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\item Beacon (online/offline)
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\end{itemize}
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\end{block}
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\vspace{2em}
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\begin{itemize}
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\item GPS Accuracy $\leq 30 \mathrm{ns}$ for $95$\% time (often better)
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\item Total time accuracy in the order of 5 -- 10~ns
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\end{itemize}
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\vspace{2em}
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\begin{alertblock}{Grand Digitizer}
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\begin{itemize}
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\item Both GNSS and Beacon,
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\item Maybe test GNSS with Beacon?
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\end{itemize}
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\end{alertblock}
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\end{frame}
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\section{Channel Delays in the GRAND DU}
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\begin{frame}{Grand DU before ADC}
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\begin{block}{Grand DU before ADC}
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\begin{itemize}
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\item Four channel ADC
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\item Per-channel Filterchain (might introduce delays)
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\end{itemize}
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\end{block}
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\begin{figure}
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\includegraphics[width=\textwidth]{grand/antenna-to-adc.pdf}
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\caption{
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Antenna to the four-channel ADC
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}
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\end{figure}
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\end{frame}
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\begin{frame}{Channel Delays Setup}
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\begin{block}{Channel Delay Setup}
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Single input into two channels\\
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$\mapsto$ delays due to cabling and filterchain\\
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\\
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Use correlation or phase differences to determine delay
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\end{block}
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\begin{figure}
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\includegraphics[width=\textwidth]{grand/channel-delay-setup.pdf}
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\caption{
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Single input to two channels
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}
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\end{figure}
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\begin{block}{What signal to put in?}
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\begin{itemize}
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\item Sine, $\mapsto$ single frequency response of chain
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\item Pulse, $\mapsto$ multiple frequencies to compare
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\end{block}
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\end{frame}
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\begin{frame}{Channel Delays Result}
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\begin{figure}
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\includegraphics[width=\textwidth]{grand/split-cable-delays/split-cable-delays-ch1ch4.pdf}
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\end{figure}
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\end{figure}
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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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presentations/2022-05-31_group_meeting/Makefile
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presentations/2022-05-31_group_meeting/Makefile
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# vim:ft=make
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-include config.mk
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.PHONY: all clean dist-clean
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### Variables
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MAIN_SRC ?= main.tex
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TEXENGINE ?= latexmk --pdf
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MAIN_TARGET = $(patsubst %.tex,%.pdf,$(MAIN_SRC))
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### Targets
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all: $(MAIN_TARGET)
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dist: all clean
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$(MAIN_TARGET): $(MAIN_SRC)
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$(TEXENGINE) $^
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dist-clean: clean
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@rm -vf *.pdf *.eps *.dvi *.ps
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clean:
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@rm -vf *.dat *.log *.out *.aux *.nav *.snm *.toc *.vrb *~ *.fls *.fdb_latexmk *-blx.bib *.bbl *.blg *.run.xml
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presentations/2022-05-31_group_meeting/README.md
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presentations/2022-05-31_group_meeting/README.md
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# Short Presentation on current status
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Mostly to show what I've been doing uptil now.
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Add short description of experimental setup?
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### Outline
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* Timing Mechanisms (GNSS, Beacon)
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* White Rabbit as reference timing mechanism
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* White Rabbit
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* PTP
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* Fourier and Phase information
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* precise measurement $N_{sample} = N_{required}$
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* imprecise measurement $N_{sample} != N_{required}$
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presentations/2022-05-31_group_meeting/config.mk
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presentations/2022-05-31_group_meeting/config.mk
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MAIN_SRC=2022-05-31_group_meeting.tex
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