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diff --git a/Master/texmf-dist/source/latex/pgf/incoming/KarlheinzOchs/basics.tex b/Master/texmf-dist/source/latex/pgf/incoming/KarlheinzOchs/basics.tex new file mode 100644 index 00000000000..f194c9eaf56 --- /dev/null +++ b/Master/texmf-dist/source/latex/pgf/incoming/KarlheinzOchs/basics.tex @@ -0,0 +1,125 @@ +% Some basic examples for signal flow diagrams. +% +% Author: Dr. Karlheinz Ochs, Ruhr-University of Bochum, Germany +% Version: 0.1 +% Date: 2007/01/05 +\documentclass{article} +\usepackage{signalflowdiagram} + +\begin{document} + +% +% Basic definitions of the symbols used in a signal flow diagram +% + +% - input terminal +\begin{signalflow}{Input terminal} + \node[input] (in) {$x(t)$}; + \node[coordinate] (c) [right from=in] {}; + % signal path + \path[r>] (in) -- (c); +\end{signalflow} + +% - output terminal +\begin{signalflow}{Output terminal} + \node[output] (out) {$y(t)$}; + \node[coordinate] (c) [left from=out] {}; + % signal path + \path[r>] (c) -- (out); +\end{signalflow} + +% - branching node +\begin{signalflow}{Branching node} + \node[input] (in) {$x(t)$}; + \node[node] (nd) [right from=in] {}; + \node[output] (out1) [above right from=nd] {$x(t)$}; + \node[output] (out2) [below right from=nd] {$x(t)$}; + % signal paths + \path[r>] (in) -- (nd); + \path[r>] (nd) |- (out1); + \path[r>] (nd) |- (out2); +\end{signalflow} + +% - multiplier +\begin{signalflow}{Multiplier} + \node[input] (in) {$x(t)$}; + \node[multiplier] (mul) [right from=in] {\nodepart{above}{$\alpha$}}; + \node[output] (out) [right from=mul] {$\alpha x(t)$}; + % signal paths + \path[r>] (in) -- (mul); + \path[r>] (mul) -- (out); +\end{signalflow} + +% - adder +\begin{signalflow}{Adder} + \node[adder] (add) {}; + \node[input] (in1) [above left from=add] {$x_1(t)$}; + \node[input] (in2) [below left from=add] {$x_2(t)$}; + \node[output] (out) [right from=add] {$x_1(t)+x_2(t)$}; + % signal paths + \path[r>] (in1) -| (add); + \path[r>] (in2) -| (add); + \path[r>] (add) -- (out); +\end{signalflow} + +% - modulator +\begin{signalflow}{Modulator} + \node[modulator] (mul) {}; + \node[input] (in1) [above left from=mul] {$x_1(t)$}; + \node[input] (in2) [below left from=mul] {$x_2(t)$}; + \node[output] (out) [right from=mul] {$x_1(t)x_2(t)$}; + % signal paths + \path[r>] (in1) -| (mul); + \path[r>] (in2) -| (mul); + \path[r>] (mul) -- (out); +\end{signalflow} + +% - delay element +\begin{signalflow}{Delay element} + \node[input] (in) {$x(t)$}; + \node[delay] (del) [right from=in] {$T$}; + \node[output] (out) [right from=del] {$x(t-T)$}; + % signal paths + \path[r>] (in) -- (del); + \path[r>] (del) -- (out); +\end{signalflow} + +% - filter +\begin{signalflow}{Filter} + \node[input] (in) {$x(t)$}; + \node[filter] (fil) [right from=in] {$q(t)$}; + \node[output] (out) [right from=fil] {$x(t)\ast q(t)$}; + % signal paths + \path[r>] (in) -- (fil); + \path[r>] (fil) -- (out); +\end{signalflow} + +% - building block +\begin{signalflow}{Building block of a minimum shift keying modulator} + \node[input] (in) {$x(t)$}; + \node[block] (msk) [right from=in] {Minimum shift keying modulator}; + \node[output](out) [right from=msk] {$z(t)$}; + % signal paths + \path[r>] (in) -- (msk); + \path[r>] (msk) -- (out); +\end{signalflow} + +% - MSK symbol encoder +\begin{signalflow}{Minimum shift keying symbol encoder} + \node[input] (in) {$x(t)$}; + \node[modulator] (mod) [right from=in] {}; + \node[multiplier] (mul) [below from=mod] {$\mathrm{j}$}; + \node[delay] (del) [right from=mod] {$T$}; + \node[node] (nd) [right from=del] {}; + \node[output] (out) [right from=nd] {$y(t)$}; + % signal paths + \path[c>] (in) -- (mod); + \path[c>] (mod) -- (del); + \path[c>] (del) -- (nd); + \path[c>] (nd) |- (mul); + \path[c>] (mul) -- (mod); + \path[c>] (nd) -- (out); +\end{signalflow} + + +\end{document} |