Commit 063cf540 by Pierre-antoine Comby

### 433 completer le cours

parent b8032db7
 ... ... @@ -67,16 +67,43 @@ Il faut trouver un compromis entre débit et robustesse aux erreurs. \item Utilise des formes d'impulsions \item Donne au spectre des des propriété utiles (bandes occupée, présence de la fréquence d'horloge ...) \end{itemize} \begin{figure}[H] \begin{figure}[H] \centering \begin{subfigure}{0.5\textwidth} \centering \begin{subfigure}{.5\textwidth} \subcaption{Impulsion rectangulaire} \end{subfigure}% \begin{subfigure}{.5\textwidth} \subcaption{Impulsion de Nyquist} \end{subfigure} \caption{Formes d'impulsions classiques} \end{figure} \begin{tikzpicture} \begin{axis} [axis lines = middle, xmin = -0.1,xmax =5,ymin=-0.1,ymax=3, xlabel = $t$,ylabel=$g(t)$,xtick={4},xticklabels={$T_b$}, ytick={2},yticklabels={$V$}] \addplot[black,thick] coordinates {(0,2) (4,2) (4,0)}; \end{axis} \end{tikzpicture} \caption{impulsion rectangulaire} \label{fig:label} \end{subfigure}% \begin{subfigure}{0.5\textwidth} \centering \begin{tikzpicture} \begin{axis} [axis lines = middle, ymin=-0.3,ymax=1.1, xlabel = $t$,ylabel=$g(t)$,xtick=\empty,ytick=\empty] \addplot[black,thick,smooth,samples=100] {50*sin(deg(x*4))/deg(x*4)}; \draw[latex-latex] (axis cs:-0.78,-0.2) -- (axis cs:0.78,-0.2) node[midway, above right]{\tiny$T_b$}; \draw[dotted] (axis cs: -0.78,0) --(axis cs:-0.78,-0.2) (axis cs: 0.78,0) --(axis cs:0.78,-0.2); \end{axis} \end{tikzpicture} \caption{impulsion de Nyquist} \label{fig:label} \end{subfigure} \caption{forme d'impulsion usuelles} \end{figure} \paragraph{Modulation} Comme pour une modulation numérique ... ...
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 ... ... @@ -6,7 +6,7 @@ \teacher{François Sammouth \\ Jean-Pierre Barbeau} \module{UE433} \usetikzlibrary{trees} \begin{document} \maketitle ... ...
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