echo.tex (955B)
1 \documentclass[11pt]{report} 2 \pagestyle{empty} 3 \usepackage{pst-sigsys} 4 \usepackage{auto-pst-pdf} 5 \begin{document} 6 \begin{pspicture}[showgrid=false](0,0)(8,2) 7 %Style 8 \psset{framesize=1 .65} 9 \psset{style=Arrow} 10 11 %In/Out 12 \rput(0,0){\rnode{in}{$x[n]$}} 13 \rput(8,0){\rnode{out}{$y[n]$}} 14 15 %Panning 16 \rput(1,0.5){Panning} 17 \pscircleop[operation=times] (1,0){pan} 18 \ncline{in}{pan} 19 20 %Crossover 21 \psfblock[framesize=1.8 .65](6,0){cross}{Crossover} 22 23 %Feedback 24 \rput(4,1.5){Feedback} 25 \pscircleop[operation=times](4,1){fb} 26 \ncangle[angleA=90,angleB=0]{cross}{fb} 27 \pscircleop(2,0){combine} 28 \ncline{pan}{combine} 29 \ncangle[angleA=180,angleB=90]{fb}{combine} 30 31 %Dampining 32 \psfblock(3,0){hidamp}{LPF} 33 \ncline{combine}{hidamp} 34 35 %Delay 36 \psfblock(4.3,0){delay}{$z^{-n}$} 37 \ncline{hidamp}{delay} 38 \ncline{delay}{cross} 39 \ncline{cross}{out} 40 41 42 \end{pspicture} 43 \end{document}