From d9e0d7c6e250e95def7be1642c35419838c0ac23 Mon Sep 17 00:00:00 2001
From: Nao Pross <np@0hm.ch>
Date: Sun, 14 Nov 2021 22:23:04 +0100
Subject: Discrete time model as tapped delay line

---
 doc/thesis/figures/tikz/tapped-delay-line.tex | 62 +++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 doc/thesis/figures/tikz/tapped-delay-line.tex

(limited to 'doc/thesis/figures/tikz')

diff --git a/doc/thesis/figures/tikz/tapped-delay-line.tex b/doc/thesis/figures/tikz/tapped-delay-line.tex
new file mode 100644
index 0000000..ef0095d
--- /dev/null
+++ b/doc/thesis/figures/tikz/tapped-delay-line.tex
@@ -0,0 +1,62 @@
+% vim: set ts=2 sw=2 noet:
+\begin{tikzpicture}[
+		dot/.style = {
+			circle,
+			fill = black, draw = black,
+			minimum size = 1.5mm,
+			outer sep = 0, inner sep = 0,
+		},
+		block/.style = {
+			rectangle, draw, thick,
+			black, fill = white,
+			minimum height = 8mm, minimum width = 8mm,
+		},
+		prod/.style = {
+			circle, draw, thick,
+			black, fill = white,
+			minimum size = 6mm,
+			inner sep = 0, outer sep = 0,
+		},
+		sum/.style = {
+			circle, draw, thick,
+			black, fill = white,
+			minimum size = 4mm,
+		},
+	]
+
+	\matrix[column sep = 5mm, row sep = 3mm] {
+		\node[block] (B0) {\(z^{-1}\)}; & \node[dot] (D0) {}; &
+		\node[block] (B1) {\(z^{-1}\)}; & \node[dot] (D1) {}; &
+		\node[block] (B2) {\(z^{-1}\)}; & \node[dot] (D2) {}; & \node (dots) {\ldots}; & 
+		\node[block] (Bk) {\(z^{-1}\)}; & \node[dot] (Dk) {};
+		\\
+		& \node[prod] (P0) {\(\times\)}; &
+		& \node[prod] (P1) {\(\times\)}; &
+		& \node[prod] (P2) {\(\times\)}; & &
+		& \node[prod] (Pk) {\(\times\)}; &
+		\\
+		& & & & \node[sum] (S) {\(\Sigma\)}; \\
+	};
+
+	\draw[thick]
+		% tapped delayed line
+		(B0.west) -- ++(-5mm,0) node[left] {\(s\)}
+		(B0.east) -- (D0) -- (B1.west)
+		(B1.east) -- (D1) -- (B2.west)
+		(B2.east) -- (D2) -- (dots) -- (Bk.west) 
+		(Bk.east) -- (Dk) -- ++(5mm,0)
+		% taps asd sum
+		(D0) -- (P0) |- (S)
+		(D1) -- (P1) -- ++(0,-6mm) -- (S)
+		(D2) -- (P2) -- ++(0,-6mm) -- (S)
+		(Dk) -- (Pk) |- (S)
+		% product weights
+		(P0.west) -- ++(-3mm,0) node[left] {\(h_1\)}
+		(P1.west) -- ++(-3mm,0) node[left] {\(h_2\)}
+		(P2.west) -- ++(-3mm,0) node[left] {\(h_3\)}
+		(Pk.west) -- ++(-3mm,0) node[left] {\(h_l\)}
+		% result
+		(S.south) |- ++(1cm,-3mm) node[right] {\(r\)}
+	;
+
+\end{tikzpicture}
-- 
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