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* BER Block Fertig gestelltsara2021-12-032-8/+84
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* Improve frequency LPFNao Pross2021-12-033-56/+93
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* Add a LPF on the frequencyNao Pross2021-12-033-29/+51
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* Fix bug when tag is aligned with inp blockNao Pross2021-12-033-9/+9
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* Refractor frequency correctionNao Pross2021-12-032-111/+95
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* Remove custom blocks from correlator testNao Pross2021-12-022-23/+3
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* Merge remote-tracking branch 'origin/master'Nao Pross2021-12-023-1/+244
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| * BER Block erstellt, läuft noch nichtwie gewünschtsara2021-12-023-1/+245
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* | Begin frequency correction (incomplete)Nao Pross2021-12-023-51/+92
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* Delete ZMQ testsNao Pross2021-12-024-201/+0
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* Implement phase correction in test file with embedded python blockNao Pross2021-12-023-539/+234
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* Working access code correlationNao Pross2021-11-282-87/+991
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* Delete acgen stuff, it was all wrongNao Pross2021-11-284-411/+0
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* Start access code cross correlationNao Pross2021-11-276-150/+1007
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* Update access code processingNao Pross2021-11-276-47/+77
| | | | Fixed: FIR filter samples need to be complex conj
* Create test files for correlatorNao Pross2021-11-256-0/+1159
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* DiscussionNao Pross2021-11-244-179/+249
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* Implement frame synchronizationNao Pross2021-11-222-67/+42
| | | | | There is an issue somewhere between the mod and demod, since frame synchronization works on a direct path.
* Implement Frame ObjectNao Pross2021-11-203-106/+283
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* Partially implement xor correlator (untested)Nao Pross2021-11-182-8/+6
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* Begin frame sync blockNao Pross2021-11-182-4/+25
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* Begin working on frame syncronizationNao Pross2021-11-171-3/+3
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* Replace GNURadio scripts with network codeNao Pross2021-11-171-2/+2
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* Test UDP connection on sink blockNao Pross2021-11-152-2/+6
| | | | Can be tested locally with: netcat -l4kuv localhost 31415
* Create UI Plot sink blockNao Pross2021-11-151-3/+17
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* Partially fix framerNao Pross2021-11-152-305/+76
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* Create (a new) OOTNao Pross2021-11-123-0/+964
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* Create ZMQ testNao Pross2021-11-114-0/+201
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* Rename sketch.py to gui.py, move tests in test/ directoryNao Pross2021-11-1111-0/+417
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* Hardware AM korrigiert, QPSK angefangensara2021-10-278-474/+374
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* Weitere Hardware AM Versuche, leider ohne Erfolgsara2021-10-265-6/+3566
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* Hardware AM Simulation kleine Anpassungen vorgenomensara2021-10-258-57/+2353
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* Erste laufende Hardware Simulation AMsara2021-10-258-629/+2381
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* Theory mit PSK und QPSK angefangen.sara2021-10-191-1/+1
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* Erster Hardware versuch mit einfachem Sinus Signal (noch nicht fertig)sara2021-10-186-0/+2296
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* Remove unnecessary subfolder tests/Simulation and move QPSK into new ↵Nao Pross2021-10-1410-1522/+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.
* 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.
* Simulations Versuch von AM und SSBsara2021-10-127-1/+2621
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* Rename "Simulation" to AMsara2021-10-072-0/+0
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* Create first AM simulationNao Pross2021-10-042-0/+635
| | | | It implements the easiest, crappiest AM moulator.
* Add test gnuradio fileNao Pross2021-09-292-0/+695
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