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| * Create tex/docstyle and fix notation in theoryNao Pross2021-10-314-41/+90
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| * Restructure QAM sectionNao Pross2021-10-312-9/+34
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| * Fix math error in QAM, improve QAM modulator diagram, rename (wrong) QPSK to PSKNao Pross2021-10-316-15/+65
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* | scr testssara2021-11-062-0/+3
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* Doku Implementation Teil angefangen.sara2021-10-301-4/+56
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* QPSK is actually only the name for 4-PSKNao Pross2021-10-281-2/+2
| | | | TODO: rename filenames and section titles as well
* Implement QPSK TX - RX with USRP hardwareNao Pross2021-10-285-26/+3361
| | | | | | | | | | And fix some small issues in QPSK simulation. The signal flow graph was tested with a coaxial cable, as well as with an 2.4 GHz antenna. The constellation diagram looked OK, but the sent data (bytes of lena512color.tiff) were neither decoded nor tested. That is because we need to synchronize data frames with a header thing or something like that (which is still not implemented yet).
* More typos and errorsNao Pross2021-10-285-22/+27
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* Update workflowNao Pross2021-10-281-0/+1
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* Typos and add constellation diagramsNao Pross2021-10-287-39/+85
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* Block diagram for QAM modulatorNao Pross2021-10-274-2/+104
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* Hardware AM korrigiert, QPSK angefangensara2021-10-279-474/+374
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* Continue M-ary QAM mixerNao Pross2021-10-272-20/+39
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* A bit of doc on M-ary QAMNao Pross2021-10-273-10/+41
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* Weitere Hardware AM Versuche, leider ohne Erfolgsara2021-10-267-13/+4213
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* Merge branch 'master' of github.com:NaoPross/FadingNaoki Pross2021-10-2612-630/+4681
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| * Hardware AM Simulation kleine Anpassungen vorgenomensara2021-10-259-58/+2357
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| * Erste laufende Hardware Simulation AMsara2021-10-258-629/+2381
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* | Fix complex number animation and add arrowNaoki Pross2021-10-261-10/+72
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* | Create animated complex numberNaoki Pross2021-10-261-5/+31
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* Create TimeDependentComplexPlane tool for videoNaoki Pross2021-10-245-11/+84
| | | | | To draw a QAM signal we will need a way to plot a time dependent complex function. So I made a thing that is just a complex plane + a time axis.
* Create QPSK simulation without QT GUINaoki Pross2021-10-243-9/+723
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* Fix typo in file name QPKS -> QPSKNaoki Pross2021-10-242-24/+36
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* Merge branch 'master' of github.com:NaoPross/FadingNaoki Pross2021-10-241-18/+18
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| * Update RX UI block yamlNao Pross2021-10-221-18/+18
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| * Remove poetry projectNao Pross2021-10-222-91/+0
| | | | | | | | | | | | | | | | | | Actually because of how gnuradio works it would be a mess to have a virtualenv. It is easier to just run $ pip3 install dearpygui instead. And the other deps (numpy) are installed anyways.
| * Create pyproject file with poetry to work on other distrosNao Pross2021-10-222-0/+91
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* | Create nix overlay for gnuradioNaoki Pross2021-10-243-2/+10
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* Make gr block compilableNaoki Pross2021-10-223-6/+9
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* Create (empty) out of tree gnuradio module fading_ui with block rx_ui_sinkNao Pross2021-10-2236-0/+15265
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* Experiment with dearpygui, create a sketch of the UI on the RX sideNaoki Pross2021-10-211-0/+61
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* Add deps to build out of tree block to nix envNaoki Pross2021-10-201-14/+7
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* Prepare nix env for dearpygui uiNaoki Pross2021-10-203-0/+74
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* Remove useless folders in video/Naoki Pross2021-10-204-3/+3
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* Typos in theory, remove QAM, start QPSK pictureNao Pross2021-10-204-35/+43
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* Add biblatextex doc link to bib fileNao Pross2021-10-201-0/+4
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* Task description (copied from given doc)Nao Pross2021-10-201-0/+4
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* Prepare nix env for videoNaoki Pross2021-10-205-0/+118
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* Theory mit PSK und QPSK angefangen.sara2021-10-195-3/+35
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* Add decoder to QPKS simulationNao Pross2021-10-182-0/+310
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* Merge remote-tracking branch 'origin/master'sara2021-10-183-3/+54
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| * Write backgroundNao Pross2021-10-183-3/+54
| | | | | | | | This took me way too long to get done.
* | Erster Hardware versuch mit einfachem Sinus Signal (noch nicht fertig)sara2021-10-187-0/+2296
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* Remove unnecessary subfolder tests/Simulation and move QPSK into new ↵Nao Pross2021-10-1410-0/+0
| | | | 'simulation' dir
* Delete old test fileNao Pross2021-10-142-695/+0
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* Add Equalizer and Phase + Freq. correction to QPKS simulationNao Pross2021-10-142-232/+606
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the work of commit 20e54b3cf198f17e05a3c7e8716138717447aa32 Important: - The diagram has been updated to include a CMA equalizer and a costas loop (for phase correction and small frequency correction). TODO: - Decode the signal - Create USRP hardware sinks (RX side, for later) It would be very nice if we manage to find a 'switch' block that allows to have in a single flow diagram both the simulated and "real" signals. NOTE: recall that the USRP gives directly a baseband signal, which means that everything between the channel the costas loop (both included) will not be used when the hardware is connected. Only the (not yet) implemented decoder (and eventually some more filters if needed) will be used. Other notes: - The layout has been updated to use QT Tab widgets (defined on the top left corner). GUI elements can be put into tabs by giving a string '<tab name>@<tab nr>: <grid options>' as GUI hint. - To make the diagram nicer, all GUI sinks (eg. constellations plots of time / freq. plots) are vertically aligned. Constellation above, and time and freq. sinks below. Variables ought to be placed near their respective block, unless they are global, in which case they should go on the top left.
* Organize referencesNao Pross2021-10-1417-0/+0
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* Create QPKS simulationNao Pross2021-10-132-0/+1148
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current flow diagram does the following: - Generate a QPKS constellation from a random bit source. The constellation is parametrized by the 'Constellation Rect. Object' and the variables 'sps' (Samples Per Symbol) and 'excess_bw' (Excess Bandwidth). - Send the modulated signal through a AWGN channel. Noise channel taps are controlled with the 'taps' variable, the other paramters are given through the 'QT GUI Range' objects. - Display the constellation diagram as well as the time and frequency domain plots of the signal after the channel (receiver side). - Synchronize the clock using a polyphase clock sync with root raised cosine filters. The number of filters is stored in 'nfilts' and the filter themselves are in 'rcc_taps'. - Finally, display the constellation after the RCC filters. What is still missing: - Multipath fading taps in the channel model (for later) - Equalization on the receiver side. PROBLEM: The wiki tutorial targets GNU Radio 3.9, and uses 'Linear Equlizer' and 'Adaptive Algorithm' blocks which are not available in GNU Radio 3.8. We need to use 'CMA Equalizer' and 'LMS DD Equalizer' and figure out their parameters instead. Though this should not be hard. - Phase and Fine Frequency Correction. - Decode the message.
* Move paragraph to introductionNao Pross2021-10-132-17/+7
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* Merge branch 'master' of github.com:NaoPross/FadingNaoki Pross2021-10-132-1/+14
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