From 1810d825322a2d1768315bad5a1b9759785057ff Mon Sep 17 00:00:00 2001 From: Philipp Le Date: Sun, 14 Jun 2020 23:23:41 +0200 Subject: WIP: Chapter 7 - Spread Spectrum --- chapter05/content_ch05.tex | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'chapter05/content_ch05.tex') diff --git a/chapter05/content_ch05.tex b/chapter05/content_ch05.tex index 2716023..f598e65 100644 --- a/chapter05/content_ch05.tex +++ b/chapter05/content_ch05.tex @@ -1980,7 +1980,8 @@ All digital modulation techniques take time-discrete and value-discrete data. \item Each instantaneous value of the time-discrete data points is prolonged to the symbol period $T_{sym}$. In fact, it becomes a rectangle function. \item The result is a series of symbols $x_{sym}(t)$. \end{itemize} -\end{itemize} +\end{itemize}% +\nomenclature[St]{$T_{sym}$}{Symbol period, smybol duration} The process of converting time-discrete symbols to time-continuous rectangle functions can be mathematically described by: \begin{equation} @@ -2581,7 +2582,7 @@ The number $K_m$ of the $K_m$-\acs{QAM} selects the number of possible symbols i \vspace{1em} - The transmission bandwidth is related symbol rate $f_{sym}$. + The transmission bandwidth is related symbol rate $f_{sym}$. \nomenclature[St]{$f_{sym}$}{Transission bandwidth} \begin{itemize} \item Simple approximations set the symbol rate $f_{sym}$ and transmission equal. \item However, the exact transmission bandwidth depends on the selection of filters and the modulation technique. -- cgit v1.1