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Diffstat (limited to 'buch/papers/ellfilter/tikz/filter.tikz.tex')
| -rw-r--r-- | buch/papers/ellfilter/tikz/filter.tikz.tex | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/buch/papers/ellfilter/tikz/filter.tikz.tex b/buch/papers/ellfilter/tikz/filter.tikz.tex new file mode 100644 index 0000000..05b59b9 --- /dev/null +++ b/buch/papers/ellfilter/tikz/filter.tikz.tex @@ -0,0 +1,26 @@ +\begin{tikzpicture}[>=stealth', auto, node distance=2cm, scale=1.2] + + \tikzstyle{zero} = [draw, circle, inner sep =0, minimum height=0.15cm] + + \tikzset{pole/.style={cross out, draw=black, minimum size=(0.15cm-\pgflinewidth), inner sep=0pt, outer sep=0pt}} + + \begin{scope}[xscale=2, yscale=2] + + \fill[ gray!20] (0,0) rectangle (1,0.707); + + \draw[gray, ->] (0,-0.25) -- (0,1.25) node[anchor=south]{$|H(\Omega)|$}; + \draw[gray, ->] (-0.25,0) -- (3,0) node[anchor=west]{$\Omega$}; + + \draw[fill = gray!20] (0,0.707) node[left] {$\sqrt{\frac{1}{1+\varepsilon^2}}$} -| (1,0) node[below] {$\Omega_p$}; + + \draw[fill = gray!20] (0,0.707) node[left] {$\sqrt{\frac{1}{1+\varepsilon^2}}$} -| (1,0) node[below] {$\Omega_p$}; + + \begin{scope}[] + \draw[thick, domain=0:2.5, variable=\x, smooth, samples=200] plot + ({\x}, {sqrt(abs(1/ (1 + \x^10)))}); + + \end{scope} + + \end{scope} + +\end{tikzpicture} |