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Diffstat (limited to '')
| -rw-r--r-- | doc/slides_video/slides.pdf | bin | 5885017 -> 6064875 bytes | |||
| -rw-r--r-- | doc/slides_video/slides.tex | 67 | ||||
| -rw-r--r-- | video/Multipath_Fading_Elevator_Speec.mkv | bin | 0 -> 2261903 bytes | |||
| -rw-r--r-- | video/Multipath_Fading_Elevator_Speec.mp4 | bin | 0 -> 1845170 bytes | |||
| -rw-r--r-- | video/Text | 9 |
5 files changed, 46 insertions, 30 deletions
diff --git a/doc/slides_video/slides.pdf b/doc/slides_video/slides.pdf Binary files differindex de35b86..3a4a6ee 100644 --- a/doc/slides_video/slides.pdf +++ b/doc/slides_video/slides.pdf 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 Binary files differnew file mode 100644 index 0000000..77c109a --- /dev/null +++ b/video/Multipath_Fading_Elevator_Speec.mkv diff --git a/video/Multipath_Fading_Elevator_Speec.mp4 b/video/Multipath_Fading_Elevator_Speec.mp4 Binary files differnew file mode 100644 index 0000000..ae71871 --- /dev/null +++ b/video/Multipath_Fading_Elevator_Speec.mp4 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.
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