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author | Pascal Schmid <81317360+paschost@users.noreply.github.com> | 2021-05-30 15:08:15 +0200 |
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committer | GitHub <noreply@github.com> | 2021-05-30 15:08:15 +0200 |
commit | 345d5751330bc1b50cc532b8ef4634ed4f8b7560 (patch) | |
tree | 50b90c758ba9ba2312744edf98e67085be27c25f /vorlesungen/slides/8/wavelets/frequenzlokalisierung.tex | |
parent | fixed first section content (diff) | |
parent | Merge pull request #18 from TReichlin/master (diff) | |
download | SeminarMatrizen-345d5751330bc1b50cc532b8ef4634ed4f8b7560.tar.gz SeminarMatrizen-345d5751330bc1b50cc532b8ef4634ed4f8b7560.zip |
Merge branch 'master' into part_verkehr
Diffstat (limited to 'vorlesungen/slides/8/wavelets/frequenzlokalisierung.tex')
-rw-r--r-- | vorlesungen/slides/8/wavelets/frequenzlokalisierung.tex | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/vorlesungen/slides/8/wavelets/frequenzlokalisierung.tex b/vorlesungen/slides/8/wavelets/frequenzlokalisierung.tex new file mode 100644 index 0000000..c78e6dd --- /dev/null +++ b/vorlesungen/slides/8/wavelets/frequenzlokalisierung.tex @@ -0,0 +1,78 @@ +% +% frequenzlokalisierung.tex -- slide template +% +% (c) 2021 Prof Dr Andreas Müller, OST Ostschweizer Fachhochschule +% +\bgroup + +\def\kurve#1#2{ + \draw[color=#2,line width=1.4pt] + plot[domain=0:6.3,samples=400] + ({\x},{7*\x*exp(-(\x/#1)*(\x/#1))/#1}); +} +\definecolor{darkgreen}{rgb}{0,0.6,0} + +\begin{frame}[t] +\setlength{\abovedisplayskip}{5pt} +\setlength{\belowdisplayskip}{5pt} +\frametitle{Lokalisierung} +\vspace{-20pt} +\begin{columns}[t,onlytextwidth] +\begin{column}{0.48\textwidth} +\begin{block}{Bandpass} +Gegeben durch $g(\lambda)\ge 0$: +\begin{align*} +g(0) &= 0\\ +\lim_{\lambda\to\infty}g(\lambda)&= 0 +\end{align*} +\vspace{-10pt} +\begin{enumerate} +\item<3-> Fourier-transformieren +\item<4-> Amplituden mit $g(\lambda)$ multiplizieren +\item<5-> Rücktransformieren +\end{enumerate} +\end{block} +\end{column} +\begin{column}{0.48\textwidth} +\uncover<6->{% +\begin{block}{Tiefpass} +Gegeben durch $h(\lambda)\ge0$: +\begin{align*} +h(0) &= 1\\ +\lim_{\lambda\to\infty}h(\lambda)&= 0 +\end{align*} +\vspace{-10pt} +\begin{enumerate} +\item<8-> Fourier-Transformation +\item<9-> Amplituden mit $h(\lambda)$ multiplizieren +\item<10-> Rücktransformation +\end{enumerate} +\end{block}} +\end{column} +\end{columns} +\begin{center} +\begin{tikzpicture}[>=latex,thick,scale=0.8] + +\uncover<2->{ +\begin{scope}[xshift=-4.5cm] +\draw[->] (-0.1,0) -- (6.6,0) coordinate[label={$\lambda$}]; +\kurve{3}{red} +\draw[->] (0,-0.1) -- (0,3.3); +\end{scope} +} + +\uncover<7->{ +\begin{scope}[xshift=4.5cm] +\draw[->] (-0.1,0) -- (6.6,0) coordinate[label={$\lambda$}]; +\draw[color=darkgreen,line width=1.4pt] + plot[domain=0:6.3,samples=100] + ({\x},{3*exp(-(\x/0.5)*(\x/0.5)}); + +\draw[->] (0,-0.1) -- (0,3.3) coordinate[label={right:$\color{darkgreen}h(\lambda)$}]; +\end{scope} +} + +\end{tikzpicture} +\end{center} +\end{frame} +\egroup |