\documentclass[a4paper, 12pt]{article}

\usepackage{mathtext}
\usepackage[T2A]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[russian]{babel}

\usepackage{amsmath}
\usepackage{titlesec}
\usepackage{scrextend}
\usepackage{graphicx}
\usepackage{tikz}

\DeclareSymbolFont{T2Aletters}{T2A}{cmr}{m}{it}
\graphicspath{ {./images/} }

% Установки для отрисовки решеток кодера
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\tikzstyle{mainedge}=[solid]
\tikzstyle{inputBit}=[rectangle,fill=red, text=white]
\tikzstyle{outputBit}=[rectangle,fill=blue, text=white]
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% #1=x; #2=y; #3=In; #4=Out
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\author{Анатолий Копыл}
\title{Курсовая работа}

\begin{document}

\section{Исходные данные}
\[ m=41 \]
\begin{center}
  \begin{tabular}{ | p{5cm} | p{5cm} | p{5cm} | } 
    \hline
    Предельные уровни аналогового сигнала \(a_{min}\), \(a_{max}\) (В) & \(a_{max}=25,6\) В;\newline\(a_{min}=-25,6\) В & Внести свои данные \\
    \hline
    Верхняя частота спектра аналогового сигнала \(f_В\) & \(f_В =(1+m\cdot 10^{-2})\cdot 10^4\) & \(f_В =14100\) \\ 
    \hline
    Заданный уровень квантования & \(j=500-3\cdot m\) & 377 \\
    \hline
    Спектральная плотность мощности флуктуационной помехи & 41 & \(N_0=2,3\cdot 10^{-7}\, В^2/Гц\)\\
    \hline
    q - номер тактового интервала ошибки & \(q=m\mod{3}+1\) & \(q=3\)\\
    \hline
    Вид модуляции & КАМ-16 & \\
    \hline
  \end{tabular}
\end{center}

\section{Аналого-цифровой преобразователь}
\[ \Delta t \leq \frac{1}{2f_B}=\frac1 {2\cdot 14100} = 3,546\cdot 10^{-5}\, с \]
\[ f_d=\frac{1}{\Delta t}\geq 2f_B=\frac{1}{3,546\cdot 10^{-5}}=28200 \]
\[ L=2^9 = 512 \]
\[ 377_{10}=101111001_2 \]

\section{Кодер}
\begin{center}
  \includegraphics[scale=0.8]{coder}

  \begin{tabular}{ | c | c | c | c | c | c | c | c | c | c | }
    \hline
    Входной сигнал &1&0&1&1&1&1&0&0&1\\
    \hline
    Выходной сигнал &11&10&00&01&10&10&01&11&11\\
    \hline
  \end{tabular}
\end{center}

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    \node at (-0,6) [left] {Выходной бит};

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\end{document}