diff --git a/coder.tex b/coder.tex
new file mode 100644
index 0000000..3ed248a
--- /dev/null
+++ b/coder.tex
@@ -0,0 +1,38 @@
+\begin{tikzpicture}[x=1.2cm, y=-1cm]
+  \node at (-0.5,0) [left] {$s_1=00$};
+  \node at (-0.5,1) [left] {$s_2=10$};
+  \node at (-0.5,2) [left] {$s_3=01$};
+  \node at (-0.5,3) [left] {$s_4=11$};
+
+  % Nodes
+  \foreach \x in {0,...,9} {
+    \node at (\x,-.7) {$\x$};
+    \foreach \y in {0,...,3} {
+      \node (s\x\y) at (\x,\y) [circle,fill=black,scale=0.7] {};
+    }
+  }
+
+  % Edges
+  \trellisEdges{0}{0}
+  \trellisEdges{1}{0}
+  \trellisEdges{1}{1}
+  \foreach \x in {2,...,8} {
+    \foreach \y in {0,...,3} {
+      \trellisEdges{\x}{\y}
+    }
+  }
+
+  % Inputs and Outputs
+  \node at (-0.5,4) [left] {Входной бит};
+  \node at (-0.5,5) [left] {Результат};
+
+  \trellisInOut{0}{0.5}{1}{11}
+  \trellisInOut{1}{1.5}{0}{10}
+  \trellisInOut{2}{1.5}{1}{00}
+  \trellisInOut{3}{2}{1}{01}
+  \trellisInOut{4}{3}{1}{10}
+  \trellisInOut{5}{3}{1}{10}
+  \trellisInOut{6}{2.5}{0}{01}
+  \trellisInOut{7}{1}{0}{11}
+  \trellisInOut{8}{0.5}{1}{11}
+\end{tikzpicture}
diff --git a/decoder.tex b/decoder.tex
new file mode 100644
index 0000000..384c197
--- /dev/null
+++ b/decoder.tex
@@ -0,0 +1,441 @@
+\begin{tikzpicture}[x=1.2cm, y=-1cm]
+
+  \node at (-0.5,0) [left] {$s_1=00$};
+  \node at (-0.5,1) [left] {$s_2=10$};
+  \node at (-0.5,2) [left] {$s_3=01$};
+  \node at (-0.5,3) [left] {$s_4=11$};
+
+  % Nodes
+  \foreach \x in {0,...,9} {
+    \node at (\x,-.7) {$\x$};
+    \foreach \y in {0,...,3} {
+      \node (s\x\y) at (\x,\y) [circle,fill=black,scale=0.7] {};
+    }
+  }
+
+  \node at (0,0) [highlight] {};
+  \node at (1,0) [highlight,label=left:{$2$}] {};
+  \node at (1,1) [highlight,label=left:{$0$}] {};
+
+  \node at (2,0) [highlight,label=left:{$0$}] {};
+  \node at (2,1) [highlight,label=left:{$2$}] {};
+  \node at (2,2) [highlight,label=left:{$1$}] {};
+  \node at (2,3) [highlight,label=left:{$1$}] {};
+
+  \node at (3,0) [highlight,label=left:{$\frac{0}{2}$}] {};
+  \node at (3,1) [highlight,label=left:{$\frac{2}{0}$}] {};
+  \node at (3,2) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (3,3) [highlight,label=left:{$\frac{1}{1}$}] {};
+
+  \node at (4,0) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (4,1) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (4,2) [highlight,label=left:{$\frac{2}{0}$}] {};
+  \node at (4,3) [highlight,label=left:{$\frac{0}{2}$}] {};
+
+  \node at (5,0) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (5,1) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (5,2) [highlight,label=left:{$\frac{0}{2}$}] {};
+  \node at (5,3) [highlight,label=left:{$\frac{2}{0}$}] {};
+
+  \node at (6,0) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (6,1) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (6,2) [highlight,label=left:{$\frac{0}{2}$}] {};
+  \node at (6,3) [highlight,label=left:{$\frac{2}{0}$}] {};
+
+  \node at (7,0) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (7,1) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (7,2) [highlight,label=left:{$\frac{2}{0}$}] {};
+  \node at (7,3) [highlight,label=left:{$\frac{0}{2}$}] {};
+
+  \node at (8,0) [highlight,label=left:{$\frac{2}{0}$}] {};
+  \node at (8,1) [highlight,label=left:{$\frac{0}{2}$}] {};
+  \node at (8,2) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (8,3) [highlight,label=left:{$\frac{1}{1}$}] {};
+
+  \node at (9,0) [highlight,label=left:{$\frac{2}{0}$}] {};
+  \node at (9,1) [highlight,label=left:{$\frac{0}{2}$}] {};
+  \node at (9,2) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (9,3) [highlight,label=left:{$\frac{1}{1}$}] {};
+
+  % Edges
+  \trellisEdges{0}{0}
+  \trellisEdges{1}{0}
+  \trellisEdges{1}{1}
+  \foreach \x in {2,...,8} {
+    \foreach \y in {0,...,3} {
+      \trellisEdges{\x}{\y}
+    }
+  }
+
+  % Inputs
+  \node at (-0.5,4) [left, align=right] {Входная\\пара};
+
+  \trellisIn{0}{11}
+  \trellisIn{1}{00}
+  \trellisIn{2}{00}
+  \trellisIn{3}{01}
+  \trellisIn{4}{10}
+  \trellisIn{5}{10}
+  \trellisIn{6}{01}
+  \trellisIn{7}{11}
+  \trellisIn{8}{11}
+\end{tikzpicture}
+
+Сегмент решетки декодера от $t=0$, до $t=3$.
+
+\begin{tikzpicture}[x=2cm, y=-1cm]
+
+  \node at (-0.5,0) [left] {$s_1=00$};
+  \node at (-0.5,1) [left] {$s_2=10$};
+  \node at (-0.5,2) [left] {$s_3=01$};
+  \node at (-0.5,3) [left] {$s_4=11$};
+
+  % Nodes
+  \foreach \x in {0,...,3} {
+    \node at (\x,-.7) {$\x$};
+    \foreach \y in {0,...,3} {
+      \node (s\x\y) at (\x,\y) [circle,fill=black,scale=0.7] {};
+    }
+  }
+
+  % Edges
+  \trellisEdges{0}{0}
+  \trellisEdges{1}{0}
+  \trellisEdges{1}{1}
+  \foreach \x in {2,...,2} {
+    \foreach \y in {0,...,3} {
+      \trellisEdges{\x}{\y}
+    }
+  }
+
+  \draw[activeedge] (s00) -- (s10);
+  \draw[activeedge] (s00) -- (s11);
+  \draw[activeedge] (s10) -- (s20);
+  \draw[activeedge] (s11) -- (s22);
+  \draw[activeedge] (s20) -- (s30);
+  \draw[activeedge] (s22) -- (s31);
+  \draw[activeedge] (s11) -- (s23);
+  \draw[activeedge] (s23) -- (s32);
+  \draw[activeedge] (s23) -- (s33);
+
+  \node at (0,0) [highlight] {};
+  \node at (1,0) [highlight,label=left:{$2$}] {};
+  \node at (1,1) [highlight,label=left:{$0$}] {};
+
+  \node at (2,0) [highlight,label=left:{$0$}] {};
+  \node at (2,1) [highlight,label=left:{$2$}] {};
+  \node at (2,2) [highlight,label=left:{$1$}] {};
+  \node at (2,3) [highlight,label=left:{$1$}] {};
+
+  \node at (3,0) [highlight,label=left:{$\frac{0}{2}$}] {$\frac23$};
+  \node at (3,1) [highlight,label=left:{$\frac{2}{0}$}] {$\frac41$};
+  \node at (3,2) [highlight,label=left:{$\frac{1}{1}$}] {$\frac52$};
+  \node at (3,3) [highlight,label=left:{$\frac{1}{1}$}] {$\frac52$};
+
+  \node at (2.5,1) [text=red] {$\times$};
+  \node at (2.5,0.5) [text=red] {$\times$};
+  \node at (2.5,1.5) [text=red] {$\times$};
+  \node at (2.5,2) [text=red] {$\times$};
+  \node at (1.5,0.5) [text=red] {$\times$};
+
+  % Inputs and Outputs
+  \node at (-0.5,4) [left, align=right] {Входная\\пара};
+
+  \trellisIn{0}{11}
+  \trellisIn{1}{00}
+  \trellisIn{2}{00}
+\end{tikzpicture}
+
+Сегмент решетки декодера от $t=0$, до $t=4$.
+
+\begin{tikzpicture}[x=2cm, y=-1cm]
+
+  \node at (-0.5,0) [left] {$s_1=00$};
+  \node at (-0.5,1) [left] {$s_2=10$};
+  \node at (-0.5,2) [left] {$s_3=01$};
+  \node at (-0.5,3) [left] {$s_4=11$};
+
+  % Nodes
+  \foreach \x in {0,...,4} {
+    \node at (\x,-.7) {$\x$};
+    \foreach \y in {0,...,3} {
+      \node (s\x\y) at (\x,\y) [circle,fill=black,scale=0.7] {};
+    }
+  }
+
+  % Edges
+  \trellisEdges{0}{0}
+  \trellisEdges{1}{0}
+  \trellisEdges{1}{1}
+  \foreach \x in {2,...,3} {
+    \foreach \y in {0,...,3} {
+      \trellisEdges{\x}{\y}
+    }
+  }
+
+
+  \draw[activeedge] (s00) -- (s11);
+  \draw[activeedge] (s11) -- (s22);
+  \draw[activeedge] (s22) -- (s31);
+  \draw[activeedge] (s11) -- (s23);
+  \draw[activeedge] (s23) -- (s32);
+  \draw[activeedge] (s23) -- (s33);
+
+  \draw[activeedge] (s31) -- (s43);
+  \draw[activeedge] (s32) -- (s41);
+  \draw[activeedge] (s32) -- (s40);
+  \draw[activeedge] (s33) -- (s42);
+
+  \node at (0,0) [highlight] {};
+  \node at (1,0) [highlight,label=left:{$2$}] {};
+  \node at (1,1) [highlight,label=left:{$0$}] {};
+
+  \node at (2,0) [highlight,label=left:{$0$}] {};
+  \node at (2,1) [highlight,label=left:{$2$}] {};
+  \node at (2,2) [highlight,label=left:{$1$}] {};
+  \node at (2,3) [highlight,label=left:{$1$}] {};
+
+  \node at (3,0) [highlight,label=left:{$\frac{0}{2}$}] {};
+  \node at (3,1) [highlight,label=left:{$\frac{2}{0}$}] {};
+  \node at (3,2) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (3,3) [highlight,label=left:{$\frac{1}{1}$}] {};
+
+  \node at (2.5,1) [text=red] {$\times$};
+  \node at (2.5,0.5) [text=red] {$\times$};
+  \node at (2.5,1.5) [text=red] {$\times$};
+  \node at (2.5,2) [text=red] {$\times$};
+  \node at (1.5,0.5) [text=red] {$\times$};
+  \node at (1.5,0) [text=red] {$\times$};
+  \node at (0.5,0) [text=red] {$\times$};
+
+  \node at (4,0) [highlight,label=left:{$\frac{1}{1}$}] {$\frac33$};
+  \node at (4,1) [highlight,label=left:{$\frac{1}{1}$}] {$\frac33$};
+  \node at (4,2) [highlight,label=left:{$\frac{2}{0}$}] {$\frac32$};
+  \node at (4,3) [highlight,label=left:{$\frac{0}{2}$}] {$\frac14$};
+
+  \node at (3.5,0) [text=red] {$\times$};
+  \node at (3.5,0.5) [text=red] {$\times$};
+  \node at (3.5,1.5) [text=red] {$\times$};
+  \node at (3.5,3) [text=red] {$\times$};
+  \node at (2.5,0) [text=red] {$\times$};
+
+  % Inputs and Outputs
+  \node at (-0.5,4) [left, align=right] {Входная\\пара};
+
+  \trellisIn{0}{11}
+  \trellisIn{1}{00}
+  \trellisIn{2}{00}
+  \trellisIn{3}{01}
+\end{tikzpicture}
+
+Сегмент решетки декодера от $t=0$, до $t=5$.
+
+\begin{tikzpicture}[x=2cm, y=-1cm]
+
+  \node at (-0.5,0) [left] {$s_1=00$};
+  \node at (-0.5,1) [left] {$s_2=10$};
+  \node at (-0.5,2) [left] {$s_3=01$};
+  \node at (-0.5,3) [left] {$s_4=11$};
+
+  % Nodes
+  \foreach \x in {0,...,5} {
+    \node at (\x,-.7) {$\x$};
+    \foreach \y in {0,...,3} {
+      \node (s\x\y) at (\x,\y) [circle,fill=black,scale=0.7] {};
+    }
+  }
+
+  % Edges
+  \trellisEdges{0}{0}
+  \trellisEdges{1}{0}
+  \trellisEdges{1}{1}
+  \foreach \x in {2,...,4} {
+    \foreach \y in {0,...,3} {
+      \trellisEdges{\x}{\y}
+    }
+  }
+
+
+  \draw[activeedge] (s00) -- (s11);
+  \draw[activeedge] (s11) -- (s22);
+  \draw[activeedge] (s22) -- (s31);
+  \draw[activeedge] (s11) -- (s23);
+  \draw[activeedge] (s23) -- (s32);
+  \draw[activeedge] (s23) -- (s33);
+
+  \draw[activeedge] (s31) -- (s43);
+  \draw[activeedge] (s32) -- (s41);
+  \draw[activeedge] (s33) -- (s42);
+
+  \draw[activeedge] (s41) -- (s52);
+  \draw[activeedge] (s42) -- (s50);
+  \draw[activeedge] (s42) -- (s51);
+  \draw[activeedge] (s43) -- (s53);
+
+  \node at (0,0) [highlight] {};
+  \node at (1,0) [highlight,label=left:{$2$}] {};
+  \node at (1,1) [highlight,label=left:{$0$}] {};
+
+  \node at (2,0) [highlight,label=left:{$0$}] {};
+  \node at (2,1) [highlight,label=left:{$2$}] {};
+  \node at (2,2) [highlight,label=left:{$1$}] {};
+  \node at (2,3) [highlight,label=left:{$1$}] {};
+
+  \node at (3,0) [highlight,label=left:{$\frac{0}{2}$}] {};
+  \node at (3,1) [highlight,label=left:{$\frac{2}{0}$}] {};
+  \node at (3,2) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (3,3) [highlight,label=left:{$\frac{1}{1}$}] {};
+
+  \node at (2.5,1) [text=red] {$\times$};
+  \node at (2.5,0.5) [text=red] {$\times$};
+  \node at (2.5,1.5) [text=red] {$\times$};
+  \node at (2.5,2) [text=red] {$\times$};
+  \node at (1.5,0.5) [text=red] {$\times$};
+  \node at (1.5,0) [text=red] {$\times$};
+  \node at (0.5,0) [text=red] {$\times$};
+
+  \node at (4,0) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (4,1) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (4,2) [highlight,label=left:{$\frac{2}{0}$}] {};
+  \node at (4,3) [highlight,label=left:{$\frac{0}{2}$}] {};
+
+  \node at (3.5,0) [text=red] {$\times$};
+  \node at (3.5,0.5) [text=red] {$\times$};
+  \node at (3.5,1.5) [text=red] {$\times$};
+  \node at (3.5,3) [text=red] {$\times$};
+  \node at (2.5,0) [text=red] {$\times$};
+
+  \node at (5,0) [highlight,label=left:{$\frac{1}{1}$}] {$\frac43$};
+  \node at (5,1) [highlight,label=left:{$\frac{1}{1}$}] {$\frac43$};
+  \node at (5,2) [highlight,label=left:{$\frac{0}{2}$}] {$\frac33$};
+  \node at (5,3) [highlight,label=left:{$\frac{2}{0}$}] {$\frac51$};
+
+  \node at (4.5,0) [text=red] {$\times$};
+  \node at (4.5,0.5) [text=red] {$\times$};
+  \node at (4.5,2.5) [text=red] {$\times$};
+  \node at (4.5,2) [text=red] {$\times$};
+  \node at (3.5,1) [text=red] {$\times$};
+
+  % Inputs and Outputs
+  \node at (-0.5,4) [left, align=right] {Входная\\пара};
+
+  \trellisIn{0}{11}
+  \trellisIn{1}{00}
+  \trellisIn{2}{00}
+  \trellisIn{3}{01}
+  \trellisIn{4}{10}
+\end{tikzpicture}
+
+Сегмент решетки декодера от $t=0$, до $t=6$.
+
+\begin{tikzpicture}[x=1.8cm, y=-1cm]
+
+  \node at (-0.5,0) [left] {$s_1=00$};
+  \node at (-0.5,1) [left] {$s_2=10$};
+  \node at (-0.5,2) [left] {$s_3=01$};
+  \node at (-0.5,3) [left] {$s_4=11$};
+
+  % Nodes
+  \foreach \x in {0,...,6} {
+    \node at (\x,-.7) {$\x$};
+    \foreach \y in {0,...,3} {
+      \node (s\x\y) at (\x,\y) [circle,fill=black,scale=0.7] {};
+    }
+  }
+
+  % Edges
+  \trellisEdges{0}{0}
+  \trellisEdges{1}{0}
+  \trellisEdges{1}{1}
+  \foreach \x in {2,...,5} {
+    \foreach \y in {0,...,3} {
+      \trellisEdges{\x}{\y}
+    }
+  }
+
+
+  \draw[activeedge] (s00) -- (s11);
+  \draw[activeedge] (s11) -- (s22);
+  \draw[activeedge] (s22) -- (s31);
+  \draw[activeedge] (s11) -- (s23);
+  \draw[activeedge] (s23) -- (s32);
+  \draw[activeedge] (s23) -- (s33);
+
+  \draw[activeedge] (s31) -- (s43);
+  \draw[activeedge] (s32) -- (s41);
+  \draw[activeedge] (s33) -- (s42);
+
+  \draw[activeedge] (s41) -- (s52);
+  \draw[activeedge] (s42) -- (s51);
+  \draw[activeedge] (s43) -- (s53);
+
+  \draw[activeedge] (s51) -- (s62);
+  \draw[activeedge] (s52) -- (s61);
+  \draw[activeedge] (s52) -- (s60);
+  \draw[activeedge] (s53) -- (s63);
+
+  \node at (0,0) [highlight] {};
+  \node at (1,0) [highlight,label=left:{$2$}] {};
+  \node at (1,1) [highlight,label=left:{$0$}] {};
+
+  \node at (2,0) [highlight,label=left:{$0$}] {};
+  \node at (2,1) [highlight,label=left:{$2$}] {};
+  \node at (2,2) [highlight,label=left:{$1$}] {};
+  \node at (2,3) [highlight,label=left:{$1$}] {};
+
+  \node at (3,0) [highlight,label=left:{$\frac{0}{2}$}] {};
+  \node at (3,1) [highlight,label=left:{$\frac{2}{0}$}] {};
+  \node at (3,2) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (3,3) [highlight,label=left:{$\frac{1}{1}$}] {};
+
+  \node at (2.5,1) [text=red] {$\times$};
+  \node at (2.5,0.5) [text=red] {$\times$};
+  \node at (2.5,1.5) [text=red] {$\times$};
+  \node at (2.5,2) [text=red] {$\times$};
+  \node at (1.5,0.5) [text=red] {$\times$};
+  \node at (1.5,0) [text=red] {$\times$};
+  \node at (0.5,0) [text=red] {$\times$};
+
+  \node at (4,0) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (4,1) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (4,2) [highlight,label=left:{$\frac{2}{0}$}] {};
+  \node at (4,3) [highlight,label=left:{$\frac{0}{2}$}] {};
+
+  \node at (3.5,0) [text=red] {$\times$};
+  \node at (3.5,0.5) [text=red] {$\times$};
+  \node at (3.5,1.5) [text=red] {$\times$};
+  \node at (3.5,3) [text=red] {$\times$};
+  \node at (2.5,0) [text=red] {$\times$};
+
+  \node at (5,0) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (5,1) [highlight,label=left:{$\frac{1}{1}$}] {};
+  \node at (5,2) [highlight,label=left:{$\frac{0}{2}$}] {};
+  \node at (5,3) [highlight,label=left:{$\frac{2}{0}$}] {};
+
+  \node at (4.5,0) [text=red] {$\times$};
+  \node at (4.5,0.5) [text=red] {$\times$};
+  \node at (4.5,2.5) [text=red] {$\times$};
+  \node at (4.5,2) [text=red] {$\times$};
+  \node at (3.5,1) [text=red] {$\times$};
+
+  \node at (6,0) [highlight,label=left:{$\frac{1}{1}$}] {$\frac44$};
+  \node at (6,1) [highlight,label=left:{$\frac{1}{1}$}] {$\frac44$};
+  \node at (6,2) [highlight,label=left:{$\frac{0}{2}$}] {$\frac33$};
+  \node at (6,3) [highlight,label=left:{$\frac{2}{0}$}] {$\frac51$};
+
+  \node at (5.5,0) [text=red] {$\times$};
+  \node at (5.5,0.5) [text=red] {$\times$};
+  \node at (5.5,2.5) [text=red] {$\times$};
+  \node at (5.5,2) [text=red] {$\times$};
+  \node at (4.5,1) [text=red] {$\times$};
+
+  % Inputs and Outputs
+  \node at (-0.5,4) [left, align=right] {Входная\\пара};
+
+  \trellisIn{0}{11}
+  \trellisIn{1}{00}
+  \trellisIn{2}{00}
+  \trellisIn{3}{01}
+  \trellisIn{4}{10}
+  \trellisIn{5}{10}
+\end{tikzpicture}
diff --git a/term_paper.tex b/term_paper.tex
index aec43da..13dbac2 100644
--- a/term_paper.tex
+++ b/term_paper.tex
@@ -99,45 +99,7 @@
 \end{center}
 
 \subsection{Решетка кодера}
-
-\begin{tikzpicture}[x=1.2cm, y=-1cm]
-  \node at (-0.5,0) [left] {$s_1=00$};
-  \node at (-0.5,1) [left] {$s_2=10$};
-  \node at (-0.5,2) [left] {$s_3=01$};
-  \node at (-0.5,3) [left] {$s_4=11$};
-
-  % Nodes
-  \foreach \x in {0,...,9} {
-    \node at (\x,-.7) {$\x$};
-    \foreach \y in {0,...,3} {
-      \node (s\x\y) at (\x,\y) [circle,fill=black,scale=0.7] {};
-    }
-  }
-
-  % Edges
-  \trellisEdges{0}{0}
-  \trellisEdges{1}{0}
-  \trellisEdges{1}{1}
-  \foreach \x in {2,...,8} {
-    \foreach \y in {0,...,3} {
-      \trellisEdges{\x}{\y}
-    }
-  }
-
-  % Inputs and Outputs
-  \node at (-0.5,4) [left] {Входной бит};
-  \node at (-0.5,5) [left] {Результат};
-
-  \trellisInOut{0}{0.5}{1}{11}
-  \trellisInOut{1}{1.5}{0}{10}
-  \trellisInOut{2}{1.5}{1}{00}
-  \trellisInOut{3}{2}{1}{01}
-  \trellisInOut{4}{3}{1}{10}
-  \trellisInOut{5}{3}{1}{10}
-  \trellisInOut{6}{2.5}{0}{01}
-  \trellisInOut{7}{1}{0}{11}
-  \trellisInOut{8}{0.5}{1}{11}
-\end{tikzpicture}
+\input{coder}
 
 Длительность двоичного символа \(T_В\) на выходе кодера:
 \[T_В=\frac{\Delta t}{2k}=\frac{3,546\cdot 10^{-5}}{2\cdot 9}=
@@ -150,447 +112,6 @@
 \(\overline{Z}=11 \dot{0}0 00 01 10 10 01 11 11\). Точкой обозначен ошибочно принятый символ.
 
 \subsection{Диаграмма декодера}
-
-\begin{tikzpicture}[x=1.2cm, y=-1cm]
-
-  \node at (-0.5,0) [left] {$s_1=00$};
-  \node at (-0.5,1) [left] {$s_2=10$};
-  \node at (-0.5,2) [left] {$s_3=01$};
-  \node at (-0.5,3) [left] {$s_4=11$};
-
-  % Nodes
-  \foreach \x in {0,...,9} {
-    \node at (\x,-.7) {$\x$};
-    \foreach \y in {0,...,3} {
-      \node (s\x\y) at (\x,\y) [circle,fill=black,scale=0.7] {};
-    }
-  }
-
-  \node at (0,0) [highlight] {};
-  \node at (1,0) [highlight,label=left:{$2$}] {};
-  \node at (1,1) [highlight,label=left:{$0$}] {};
-
-  \node at (2,0) [highlight,label=left:{$0$}] {};
-  \node at (2,1) [highlight,label=left:{$2$}] {};
-  \node at (2,2) [highlight,label=left:{$1$}] {};
-  \node at (2,3) [highlight,label=left:{$1$}] {};
-
-  \node at (3,0) [highlight,label=left:{$\frac{0}{2}$}] {};
-  \node at (3,1) [highlight,label=left:{$\frac{2}{0}$}] {};
-  \node at (3,2) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (3,3) [highlight,label=left:{$\frac{1}{1}$}] {};
-
-  \node at (4,0) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (4,1) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (4,2) [highlight,label=left:{$\frac{2}{0}$}] {};
-  \node at (4,3) [highlight,label=left:{$\frac{0}{2}$}] {};
-
-  \node at (5,0) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (5,1) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (5,2) [highlight,label=left:{$\frac{0}{2}$}] {};
-  \node at (5,3) [highlight,label=left:{$\frac{2}{0}$}] {};
-
-  \node at (6,0) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (6,1) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (6,2) [highlight,label=left:{$\frac{0}{2}$}] {};
-  \node at (6,3) [highlight,label=left:{$\frac{2}{0}$}] {};
-
-  \node at (7,0) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (7,1) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (7,2) [highlight,label=left:{$\frac{2}{0}$}] {};
-  \node at (7,3) [highlight,label=left:{$\frac{0}{2}$}] {};
-
-  \node at (8,0) [highlight,label=left:{$\frac{2}{0}$}] {};
-  \node at (8,1) [highlight,label=left:{$\frac{0}{2}$}] {};
-  \node at (8,2) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (8,3) [highlight,label=left:{$\frac{1}{1}$}] {};
-
-  \node at (9,0) [highlight,label=left:{$\frac{2}{0}$}] {};
-  \node at (9,1) [highlight,label=left:{$\frac{0}{2}$}] {};
-  \node at (9,2) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (9,3) [highlight,label=left:{$\frac{1}{1}$}] {};
-
-  % Edges
-  \trellisEdges{0}{0}
-  \trellisEdges{1}{0}
-  \trellisEdges{1}{1}
-  \foreach \x in {2,...,8} {
-    \foreach \y in {0,...,3} {
-      \trellisEdges{\x}{\y}
-    }
-  }
-
-  % Inputs
-  \node at (-0.5,4) [left, align=right] {Входная\\пара};
-
-  \trellisIn{0}{11}
-  \trellisIn{1}{00}
-  \trellisIn{2}{00}
-  \trellisIn{3}{01}
-  \trellisIn{4}{10}
-  \trellisIn{5}{10}
-  \trellisIn{6}{01}
-  \trellisIn{7}{11}
-  \trellisIn{8}{11}
-\end{tikzpicture}
-
-Сегмент решетки декодера от $t=0$, до $t=3$.
-
-\begin{tikzpicture}[x=2cm, y=-1cm]
-
-  \node at (-0.5,0) [left] {$s_1=00$};
-  \node at (-0.5,1) [left] {$s_2=10$};
-  \node at (-0.5,2) [left] {$s_3=01$};
-  \node at (-0.5,3) [left] {$s_4=11$};
-
-  % Nodes
-  \foreach \x in {0,...,3} {
-    \node at (\x,-.7) {$\x$};
-    \foreach \y in {0,...,3} {
-      \node (s\x\y) at (\x,\y) [circle,fill=black,scale=0.7] {};
-    }
-  }
-
-  % Edges
-  \trellisEdges{0}{0}
-  \trellisEdges{1}{0}
-  \trellisEdges{1}{1}
-  \foreach \x in {2,...,2} {
-    \foreach \y in {0,...,3} {
-      \trellisEdges{\x}{\y}
-    }
-  }
-
-  \draw[activeedge] (s00) -- (s10);
-  \draw[activeedge] (s00) -- (s11);
-  \draw[activeedge] (s10) -- (s20);
-  \draw[activeedge] (s11) -- (s22);
-  \draw[activeedge] (s20) -- (s30);
-  \draw[activeedge] (s22) -- (s31);
-  \draw[activeedge] (s11) -- (s23);
-  \draw[activeedge] (s23) -- (s32);
-  \draw[activeedge] (s23) -- (s33);
-
-  \node at (0,0) [highlight] {};
-  \node at (1,0) [highlight,label=left:{$2$}] {};
-  \node at (1,1) [highlight,label=left:{$0$}] {};
-
-  \node at (2,0) [highlight,label=left:{$0$}] {};
-  \node at (2,1) [highlight,label=left:{$2$}] {};
-  \node at (2,2) [highlight,label=left:{$1$}] {};
-  \node at (2,3) [highlight,label=left:{$1$}] {};
-
-  \node at (3,0) [highlight,label=left:{$\frac{0}{2}$}] {$\frac23$};
-  \node at (3,1) [highlight,label=left:{$\frac{2}{0}$}] {$\frac41$};
-  \node at (3,2) [highlight,label=left:{$\frac{1}{1}$}] {$\frac52$};
-  \node at (3,3) [highlight,label=left:{$\frac{1}{1}$}] {$\frac52$};
-
-  \node at (2.5,1) [text=red] {$\times$};
-  \node at (2.5,0.5) [text=red] {$\times$};
-  \node at (2.5,1.5) [text=red] {$\times$};
-  \node at (2.5,2) [text=red] {$\times$};
-  \node at (1.5,0.5) [text=red] {$\times$};
-
-  % Inputs and Outputs
-  \node at (-0.5,4) [left, align=right] {Входная\\пара};
-
-  \trellisIn{0}{11}
-  \trellisIn{1}{00}
-  \trellisIn{2}{00}
-\end{tikzpicture}
-
-Сегмент решетки декодера от $t=0$, до $t=4$.
-
-\begin{tikzpicture}[x=2cm, y=-1cm]
-
-  \node at (-0.5,0) [left] {$s_1=00$};
-  \node at (-0.5,1) [left] {$s_2=10$};
-  \node at (-0.5,2) [left] {$s_3=01$};
-  \node at (-0.5,3) [left] {$s_4=11$};
-
-  % Nodes
-  \foreach \x in {0,...,4} {
-    \node at (\x,-.7) {$\x$};
-    \foreach \y in {0,...,3} {
-      \node (s\x\y) at (\x,\y) [circle,fill=black,scale=0.7] {};
-    }
-  }
-
-  % Edges
-  \trellisEdges{0}{0}
-  \trellisEdges{1}{0}
-  \trellisEdges{1}{1}
-  \foreach \x in {2,...,3} {
-    \foreach \y in {0,...,3} {
-      \trellisEdges{\x}{\y}
-    }
-  }
-
-
-  \draw[activeedge] (s00) -- (s11);
-  \draw[activeedge] (s11) -- (s22);
-  \draw[activeedge] (s22) -- (s31);
-  \draw[activeedge] (s11) -- (s23);
-  \draw[activeedge] (s23) -- (s32);
-  \draw[activeedge] (s23) -- (s33);
-
-  \draw[activeedge] (s31) -- (s43);
-  \draw[activeedge] (s32) -- (s41);
-  \draw[activeedge] (s32) -- (s40);
-  \draw[activeedge] (s33) -- (s42);
-
-  \node at (0,0) [highlight] {};
-  \node at (1,0) [highlight,label=left:{$2$}] {};
-  \node at (1,1) [highlight,label=left:{$0$}] {};
-
-  \node at (2,0) [highlight,label=left:{$0$}] {};
-  \node at (2,1) [highlight,label=left:{$2$}] {};
-  \node at (2,2) [highlight,label=left:{$1$}] {};
-  \node at (2,3) [highlight,label=left:{$1$}] {};
-
-  \node at (3,0) [highlight,label=left:{$\frac{0}{2}$}] {};
-  \node at (3,1) [highlight,label=left:{$\frac{2}{0}$}] {};
-  \node at (3,2) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (3,3) [highlight,label=left:{$\frac{1}{1}$}] {};
-
-  \node at (2.5,1) [text=red] {$\times$};
-  \node at (2.5,0.5) [text=red] {$\times$};
-  \node at (2.5,1.5) [text=red] {$\times$};
-  \node at (2.5,2) [text=red] {$\times$};
-  \node at (1.5,0.5) [text=red] {$\times$};
-  \node at (1.5,0) [text=red] {$\times$};
-  \node at (0.5,0) [text=red] {$\times$};
-
-  \node at (4,0) [highlight,label=left:{$\frac{1}{1}$}] {$\frac33$};
-  \node at (4,1) [highlight,label=left:{$\frac{1}{1}$}] {$\frac33$};
-  \node at (4,2) [highlight,label=left:{$\frac{2}{0}$}] {$\frac32$};
-  \node at (4,3) [highlight,label=left:{$\frac{0}{2}$}] {$\frac14$};
-
-  \node at (3.5,0) [text=red] {$\times$};
-  \node at (3.5,0.5) [text=red] {$\times$};
-  \node at (3.5,1.5) [text=red] {$\times$};
-  \node at (3.5,3) [text=red] {$\times$};
-  \node at (2.5,0) [text=red] {$\times$};
-
-  % Inputs and Outputs
-  \node at (-0.5,4) [left, align=right] {Входная\\пара};
-
-  \trellisIn{0}{11}
-  \trellisIn{1}{00}
-  \trellisIn{2}{00}
-  \trellisIn{3}{01}
-\end{tikzpicture}
-
-Сегмент решетки декодера от $t=0$, до $t=5$.
-
-\begin{tikzpicture}[x=2cm, y=-1cm]
-
-  \node at (-0.5,0) [left] {$s_1=00$};
-  \node at (-0.5,1) [left] {$s_2=10$};
-  \node at (-0.5,2) [left] {$s_3=01$};
-  \node at (-0.5,3) [left] {$s_4=11$};
-
-  % Nodes
-  \foreach \x in {0,...,5} {
-    \node at (\x,-.7) {$\x$};
-    \foreach \y in {0,...,3} {
-      \node (s\x\y) at (\x,\y) [circle,fill=black,scale=0.7] {};
-    }
-  }
-
-  % Edges
-  \trellisEdges{0}{0}
-  \trellisEdges{1}{0}
-  \trellisEdges{1}{1}
-  \foreach \x in {2,...,4} {
-    \foreach \y in {0,...,3} {
-      \trellisEdges{\x}{\y}
-    }
-  }
-
-
-  \draw[activeedge] (s00) -- (s11);
-  \draw[activeedge] (s11) -- (s22);
-  \draw[activeedge] (s22) -- (s31);
-  \draw[activeedge] (s11) -- (s23);
-  \draw[activeedge] (s23) -- (s32);
-  \draw[activeedge] (s23) -- (s33);
-
-  \draw[activeedge] (s31) -- (s43);
-  \draw[activeedge] (s32) -- (s41);
-  \draw[activeedge] (s33) -- (s42);
-
-  \draw[activeedge] (s41) -- (s52);
-  \draw[activeedge] (s42) -- (s50);
-  \draw[activeedge] (s42) -- (s51);
-  \draw[activeedge] (s43) -- (s53);
-
-  \node at (0,0) [highlight] {};
-  \node at (1,0) [highlight,label=left:{$2$}] {};
-  \node at (1,1) [highlight,label=left:{$0$}] {};
-
-  \node at (2,0) [highlight,label=left:{$0$}] {};
-  \node at (2,1) [highlight,label=left:{$2$}] {};
-  \node at (2,2) [highlight,label=left:{$1$}] {};
-  \node at (2,3) [highlight,label=left:{$1$}] {};
-
-  \node at (3,0) [highlight,label=left:{$\frac{0}{2}$}] {};
-  \node at (3,1) [highlight,label=left:{$\frac{2}{0}$}] {};
-  \node at (3,2) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (3,3) [highlight,label=left:{$\frac{1}{1}$}] {};
-
-  \node at (2.5,1) [text=red] {$\times$};
-  \node at (2.5,0.5) [text=red] {$\times$};
-  \node at (2.5,1.5) [text=red] {$\times$};
-  \node at (2.5,2) [text=red] {$\times$};
-  \node at (1.5,0.5) [text=red] {$\times$};
-  \node at (1.5,0) [text=red] {$\times$};
-  \node at (0.5,0) [text=red] {$\times$};
-
-  \node at (4,0) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (4,1) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (4,2) [highlight,label=left:{$\frac{2}{0}$}] {};
-  \node at (4,3) [highlight,label=left:{$\frac{0}{2}$}] {};
-
-  \node at (3.5,0) [text=red] {$\times$};
-  \node at (3.5,0.5) [text=red] {$\times$};
-  \node at (3.5,1.5) [text=red] {$\times$};
-  \node at (3.5,3) [text=red] {$\times$};
-  \node at (2.5,0) [text=red] {$\times$};
-
-  \node at (5,0) [highlight,label=left:{$\frac{1}{1}$}] {$\frac43$};
-  \node at (5,1) [highlight,label=left:{$\frac{1}{1}$}] {$\frac43$};
-  \node at (5,2) [highlight,label=left:{$\frac{0}{2}$}] {$\frac33$};
-  \node at (5,3) [highlight,label=left:{$\frac{2}{0}$}] {$\frac51$};
-
-  \node at (4.5,0) [text=red] {$\times$};
-  \node at (4.5,0.5) [text=red] {$\times$};
-  \node at (4.5,2.5) [text=red] {$\times$};
-  \node at (4.5,2) [text=red] {$\times$};
-  \node at (3.5,1) [text=red] {$\times$};
-
-  % Inputs and Outputs
-  \node at (-0.5,4) [left, align=right] {Входная\\пара};
-
-  \trellisIn{0}{11}
-  \trellisIn{1}{00}
-  \trellisIn{2}{00}
-  \trellisIn{3}{01}
-  \trellisIn{4}{10}
-\end{tikzpicture}
-
-Сегмент решетки декодера от $t=0$, до $t=6$.
-
-\begin{tikzpicture}[x=1.8cm, y=-1cm]
-
-  \node at (-0.5,0) [left] {$s_1=00$};
-  \node at (-0.5,1) [left] {$s_2=10$};
-  \node at (-0.5,2) [left] {$s_3=01$};
-  \node at (-0.5,3) [left] {$s_4=11$};
-
-  % Nodes
-  \foreach \x in {0,...,6} {
-    \node at (\x,-.7) {$\x$};
-    \foreach \y in {0,...,3} {
-      \node (s\x\y) at (\x,\y) [circle,fill=black,scale=0.7] {};
-    }
-  }
-
-  % Edges
-  \trellisEdges{0}{0}
-  \trellisEdges{1}{0}
-  \trellisEdges{1}{1}
-  \foreach \x in {2,...,5} {
-    \foreach \y in {0,...,3} {
-      \trellisEdges{\x}{\y}
-    }
-  }
-
-
-  \draw[activeedge] (s00) -- (s11);
-  \draw[activeedge] (s11) -- (s22);
-  \draw[activeedge] (s22) -- (s31);
-  \draw[activeedge] (s11) -- (s23);
-  \draw[activeedge] (s23) -- (s32);
-  \draw[activeedge] (s23) -- (s33);
-
-  \draw[activeedge] (s31) -- (s43);
-  \draw[activeedge] (s32) -- (s41);
-  \draw[activeedge] (s33) -- (s42);
-
-  \draw[activeedge] (s41) -- (s52);
-  \draw[activeedge] (s42) -- (s51);
-  \draw[activeedge] (s43) -- (s53);
-
-  \draw[activeedge] (s51) -- (s62);
-  \draw[activeedge] (s52) -- (s61);
-  \draw[activeedge] (s52) -- (s60);
-  \draw[activeedge] (s53) -- (s63);
-
-  \node at (0,0) [highlight] {};
-  \node at (1,0) [highlight,label=left:{$2$}] {};
-  \node at (1,1) [highlight,label=left:{$0$}] {};
-
-  \node at (2,0) [highlight,label=left:{$0$}] {};
-  \node at (2,1) [highlight,label=left:{$2$}] {};
-  \node at (2,2) [highlight,label=left:{$1$}] {};
-  \node at (2,3) [highlight,label=left:{$1$}] {};
-
-  \node at (3,0) [highlight,label=left:{$\frac{0}{2}$}] {};
-  \node at (3,1) [highlight,label=left:{$\frac{2}{0}$}] {};
-  \node at (3,2) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (3,3) [highlight,label=left:{$\frac{1}{1}$}] {};
-
-  \node at (2.5,1) [text=red] {$\times$};
-  \node at (2.5,0.5) [text=red] {$\times$};
-  \node at (2.5,1.5) [text=red] {$\times$};
-  \node at (2.5,2) [text=red] {$\times$};
-  \node at (1.5,0.5) [text=red] {$\times$};
-  \node at (1.5,0) [text=red] {$\times$};
-  \node at (0.5,0) [text=red] {$\times$};
-
-  \node at (4,0) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (4,1) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (4,2) [highlight,label=left:{$\frac{2}{0}$}] {};
-  \node at (4,3) [highlight,label=left:{$\frac{0}{2}$}] {};
-
-  \node at (3.5,0) [text=red] {$\times$};
-  \node at (3.5,0.5) [text=red] {$\times$};
-  \node at (3.5,1.5) [text=red] {$\times$};
-  \node at (3.5,3) [text=red] {$\times$};
-  \node at (2.5,0) [text=red] {$\times$};
-
-  \node at (5,0) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (5,1) [highlight,label=left:{$\frac{1}{1}$}] {};
-  \node at (5,2) [highlight,label=left:{$\frac{0}{2}$}] {};
-  \node at (5,3) [highlight,label=left:{$\frac{2}{0}$}] {};
-
-  \node at (4.5,0) [text=red] {$\times$};
-  \node at (4.5,0.5) [text=red] {$\times$};
-  \node at (4.5,2.5) [text=red] {$\times$};
-  \node at (4.5,2) [text=red] {$\times$};
-  \node at (3.5,1) [text=red] {$\times$};
-
-  \node at (6,0) [highlight,label=left:{$\frac{1}{1}$}] {$\frac44$};
-  \node at (6,1) [highlight,label=left:{$\frac{1}{1}$}] {$\frac44$};
-  \node at (6,2) [highlight,label=left:{$\frac{0}{2}$}] {$\frac33$};
-  \node at (6,3) [highlight,label=left:{$\frac{2}{0}$}] {$\frac51$};
-
-  \node at (5.5,0) [text=red] {$\times$};
-  \node at (5.5,0.5) [text=red] {$\times$};
-  \node at (5.5,2.5) [text=red] {$\times$};
-  \node at (5.5,2) [text=red] {$\times$};
-  \node at (4.5,1) [text=red] {$\times$};
-
-  % Inputs and Outputs
-  \node at (-0.5,4) [left, align=right] {Входная\\пара};
-
-  \trellisIn{0}{11}
-  \trellisIn{1}{00}
-  \trellisIn{2}{00}
-  \trellisIn{3}{01}
-  \trellisIn{4}{10}
-  \trellisIn{5}{10}
-\end{tikzpicture}
+\input{decoder}
 
 \end{document}