From ea1c2d67623010b2b42a4a1a654f1ca37b57403e Mon Sep 17 00:00:00 2001
From: sara <sara.halter@gmx.ch>
Date: Thu, 23 Dec 2021 23:35:13 +0100
Subject: Video

---
 doc/slides_video/slides.pdf               | Bin 5885017 -> 6064875 bytes
 doc/slides_video/slides.tex               |  67 +++++++++++++++++-------------
 video/Multipath_Fading_Elevator_Speec.mkv | Bin 0 -> 2261903 bytes
 video/Multipath_Fading_Elevator_Speec.mp4 | Bin 0 -> 1845170 bytes
 video/Text                                |   9 ++++
 5 files changed, 46 insertions(+), 30 deletions(-)
 create mode 100644 video/Multipath_Fading_Elevator_Speec.mkv
 create mode 100644 video/Multipath_Fading_Elevator_Speec.mp4
 create mode 100644 video/Text

diff --git a/doc/slides_video/slides.pdf b/doc/slides_video/slides.pdf
index de35b86..3a4a6ee 100644
Binary files a/doc/slides_video/slides.pdf and b/doc/slides_video/slides.pdf differ
diff --git a/doc/slides_video/slides.tex b/doc/slides_video/slides.tex
index 4a916d0..7774532 100644
--- a/doc/slides_video/slides.tex
+++ b/doc/slides_video/slides.tex
@@ -98,40 +98,47 @@
 \end{frame}
 
 
-\begin{frame}{Channel model}
-\begin{columns}
-	\begin{column}{.5\linewidth}
-		\begin{itemize}
-			\item Discrete-time model
-		\end{itemize}
-		\vspace{0.2cm}
-		\begin{figure}
-			\includegraphics[width=\linewidth]{figures/screenshots/discred_time}
-		\end{figure}
-	\end{column}
-	\begin{column}{.5\linewidth}
-		\begin{itemize}
-			\item Statistical model
-		\end{itemize}
-		\vspace{0.2cm}
-		\begin{column}{.5\linewidth}
-			\begin{figure}
-				\includegraphics[width=\linewidth]{figures/screenshots/selectiv_1}
-			\end{figure}
-		\end{column}
-		\begin{column}{.5\linewidth}
-			\begin{figure}
-				\includegraphics[width=\linewidth]{figures/screenshots/selectiv_2}
-			\end{figure}
-		\end{column}
-	\end{column}
-\end{columns}
+%\begin{frame}{Channel model}
+%\begin{columns}
+%	\begin{column}{.5\linewidth}
+%		\begin{itemize}
+%			\item Discrete-time model
+%		\end{itemize}
+%		\vspace{0.2cm}
+%		\begin{figure}
+%			\includegraphics[width=\linewidth]{figures/screenshots/discred_time}
+%		\end{figure}
+%	\end{column}
+%	\begin{column}{.5\linewidth}
+%		\begin{itemize}
+%			\item Statistical model
+%		\end{itemize}
+%		\vspace{0.2cm}
+%		\begin{column}{.5\linewidth}
+%			\begin{figure}
+%				\includegraphics[width=\linewidth]{figures/screenshots/selectiv_1}
+%			\end{figure}
+%		\end{column}
+%		\begin{column}{.5\linewidth}
+%			\begin{figure}
+%				\includegraphics[width=\linewidth]{figures/screenshots/selectiv_2}
+%			\end{figure}
+%		\end{column}
+%	\end{column}
+%\end{columns}
+%\end{frame}
+
+
+\begin{frame}{Graphical User Interface}
+%	\begin{figure}
+		\centering
+		\includegraphics[width = \linewidth]{figures/screenshots/gui_screenshot}
+%	\end{figure}
+	%Built with DearPyGUI, talks to GR via UDP/IP.
 \end{frame}
 
 
 
-
-
 %%Tools
 
 \end{document}
diff --git a/video/Multipath_Fading_Elevator_Speec.mkv b/video/Multipath_Fading_Elevator_Speec.mkv
new file mode 100644
index 0000000..77c109a
Binary files /dev/null and b/video/Multipath_Fading_Elevator_Speec.mkv differ
diff --git a/video/Multipath_Fading_Elevator_Speec.mp4 b/video/Multipath_Fading_Elevator_Speec.mp4
new file mode 100644
index 0000000..ae71871
Binary files /dev/null and b/video/Multipath_Fading_Elevator_Speec.mp4 differ
diff --git a/video/Text b/video/Text
new file mode 100644
index 0000000..972f442
--- /dev/null
+++ b/video/Text
@@ -0,0 +1,9 @@
+In our semeter thesis, we have built a multipath fading demonstration platform using a software defined radio.
+
+Multipath fading is common problem that affects today's wireless devices. Multipath refers to the fact that, when a transmitter radiates a signal, some of the electromagnetic waves do not go straight to the receiver. What happens instead, is that some waves get reflected in the channel, thus taking a longer path to the receiver, and interfere destructively with eachother.
+
+This is a block diagram of our platform. The transmitter modulates the data using either QPSK or QAM. We have simulated a channel model with additive white gaussian noise, and multipath fading. The receiver's signal processing chain demodulates the data and computes the empirical bit error rate.
+
+Here we have a few pictures of our setup for the measurements. We used two USRP B210 software defined radios with a Rubidium clock generator each.
+
+And here's a screenshot of the graphical interface we built to demonstrate the effect of multipath fading.
\ No newline at end of file
-- 
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