| Commit message (Collapse) | Author | Age | Files | Lines | |
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| * | Add Equalizer and Phase + Freq. correction to QPKS simulation | Nao Pross | 2021-10-14 | 2 | -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 references | Nao Pross | 2021-10-14 | 17 | -0/+0 |
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| * | Create QPKS simulation | Nao Pross | 2021-10-13 | 2 | -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 introduction | Nao Pross | 2021-10-13 | 2 | -17/+7 |
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| * | Merge branch 'master' of github.com:NaoPross/Fading | Naoki Pross | 2021-10-13 | 2 | -1/+14 |
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| | * | Delete PDF | Nao Pross | 2021-10-13 | 1 | -0/+0 |
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| | * | Merge branch 'master' of github.com:NaoPross/Fading | Nao Pross | 2021-10-13 | 15 | -17/+2762 |
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| | * | | Introduction | Nao Pross | 2021-10-13 | 3 | -3/+16 |
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| * | | | Add reference | Naoki Pross | 2021-10-13 | 1 | -0/+0 |
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| * | | | More on QAM | Naoki Pross | 2021-10-13 | 3 | -9/+28 |
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| * | | Fix workflow | Naoki Pross | 2021-10-12 | 2 | -4/+5 |
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| * | | Merge branch 'master' of github.com:NaoPross/Fading | Naoki Pross | 2021-10-12 | 8 | -3/+2623 |
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| | * | | Simulations Versuch von AM und SSB | sara | 2021-10-12 | 8 | -3/+2623 |
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| * | | Block diagram of communication and start AM and QAM | Naoki Pross | 2021-10-12 | 6 | -12/+136 |
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| * | Merge branch 'master' of github.com:NaoPross/Fading | Nao Pross | 2021-10-07 | 2 | -0/+0 |
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| | * | Rename "Simulation" to AM | sara | 2021-10-07 | 2 | -0/+0 |
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| * | | Set up and create bibliography | Nao Pross | 2021-10-07 | 3 | -11/+83 |
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| * | Delete PDF | Nao Pross | 2021-10-07 | 1 | -0/+0 |
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| * | Disable thesis template | Naoki Pross | 2021-10-07 | 5 | -15/+57 |
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| * | Review sec 3 of project plan | Naoki Pross | 2021-10-05 | 2 | -12/+23 |
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| * | Review and change font of project plan | Naoki Pross | 2021-10-05 | 2 | -24/+16 |
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| * | Change color of progress bars | Nao Pross | 2021-10-05 | 2 | -19/+11 |
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| * | Projectplan angepasst | sara | 2021-10-05 | 5 | -29/+35 |
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| * | Create first AM simulation | Nao Pross | 2021-10-04 | 2 | -0/+635 |
| | | | | | It implements the easiest, crappiest AM moulator. | ||||
| * | Merge branch 'master' of https://github.com/NaoPross/Fading | Nao Pross | 2021-10-04 | 2 | -0/+0 |
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| | * | Add references of GNURadio's fading channel simulator | Naoki Pross | 2021-10-01 | 2 | -0/+0 |
| | | | | | | | | | | | Basic fading : iet-com.2008.0297.pdf Frequency selective : iscas.2009.5118116.pdf | ||||
| * | | Add test gnuradio file | Nao Pross | 2021-09-29 | 2 | -0/+695 |
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| * | Add references | Naoki Pross | 2021-09-29 | 3 | -0/+0 |
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| * | Update Gantt diagram | Naoki Pross | 2021-09-29 | 2 | -16/+24 |
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| * | Variante zur ersten korrektur | OST\sara.halter | 2021-09-27 | 1 | -5/+7 |
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| * | Update Tasks | OST\sara.halter | 2021-09-27 | 1 | -1/+8 |
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| * | Update project plan | Naoki Pross | 2021-09-25 | 2 | -27/+165 |
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| * | Restructure project plan | Nao Pross | 2021-09-25 | 2 | -21/+12 |
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| * | first Description | OST\sara.halter | 2021-09-23 | 1 | -12/+34 |
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| * | Update Gantt Diagram | Naoki Pross | 2021-09-23 | 2 | -41/+64 |
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| * | Merge remote-tracking branch 'origin/master' | OST\sara.halter | 2021-09-23 | 15 | -21/+1404 |
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| | * | Add project plan and thesis to workflow | Nao Pross | 2021-09-21 | 4 | -1/+6 |
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| | * | Create test LaTeX workflow | Nao Pross | 2021-09-21 | 1 | -0/+16 |
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| | * | Add list of required latex packages | Nao Pross | 2021-09-21 | 1 | -0/+279 |
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| | * | Create thesis skeleton | Nao Pross | 2021-09-21 | 10 | -17/+129 |
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| | * | Adjust template | Nao Pross | 2021-09-21 | 4 | -104/+44 |
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| | * | Create thesis with latex template | Nao Pross | 2021-09-21 | 5 | -0/+1007 |
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| | * | Fix typo | Nao Pross | 2021-09-21 | 1 | -1/+1 |
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| | * | Create makefile for project plan | Nao Pross | 2021-09-21 | 2 | -0/+23 |
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| | * | Make whitespace consistents with tabs | Nao Pross | 2021-09-21 | 2 | -21/+22 |
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| | * | Capitalize project plan file | Nao Pross | 2021-09-21 | 1 | -0/+0 |
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| * | | Projekttplan angepasst noch nicht fertig | OST\sara.halter | 2021-09-23 | 2 | -156/+145 |
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| * | | Projectplan weiter gearbeitet noch, nicht fertig | OST\sara.halter | 2021-09-21 | 2 | -108/+156 |
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| * | Merge branch 'master' of https://github.com/NaoPross/Fading | Naoki Pross | 2021-09-21 | 2 | -0/+24 |
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| | * | Test plan | OST\sara.halter | 2021-09-21 | 2 | -0/+24 |
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index : hsr/Fading | |
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