From d042357d4abba1b2c6a6e1e66a7d764b3fe5c9f2 Mon Sep 17 00:00:00 2001
From: Nao Pross <np@0hm.ch>
Date: Thu, 28 Oct 2021 00:33:05 +0200
Subject: Typos and add constellation diagrams

---
 doc/thesis/figures/tikz/qam-constellation.tex | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 doc/thesis/figures/tikz/qam-constellation.tex

(limited to 'doc/thesis/figures/tikz/qam-constellation.tex')

diff --git a/doc/thesis/figures/tikz/qam-constellation.tex b/doc/thesis/figures/tikz/qam-constellation.tex
new file mode 100644
index 0000000..e9a7778
--- /dev/null
+++ b/doc/thesis/figures/tikz/qam-constellation.tex
@@ -0,0 +1,25 @@
+% vim: set ts=2 sw=2 noet:
+\begin{tikzpicture}[
+		axis/.style = {
+			thick, -latex, black,
+		},
+		star/.style = {
+			draw = black, thick, fill = red!50,
+			circle, outer sep = 1mm, inner sep = 0,
+			minimum size = 1.5mm,
+		},
+	]
+	\draw[axis] (-25mm,0) to (25mm,0) node[right] {\(\phi_i\)};
+	\draw[axis] (0,-25mm) to (0,25mm) node[above] {\(\phi_q\)};
+
+	\foreach \i in {0,1,...,3}{
+		\foreach \q in {0,1,...,3}{
+			\node[star] (s\i\q) at ({\i*10mm - 15mm},{\q*10mm - 15mm}) {};
+		}
+	}
+
+	\foreach \i/\l in {0/00,1/01,2/11,3/10}{
+		\node[lightgray, below = 3mm] at (s\i0) {\texttt{\l}};
+		\node[lightgray, left = 2mm] at (s0\i) {\texttt{\l}};
+	}
+\end{tikzpicture}
-- 
cgit v1.2.1