HW 13b: Difference between revisions
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**grc.tar.gz |
**grc.tar.gz |
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*http://gnuradio.org/trac/wiki/UbuntuInstall |
*http://gnuradio.org/trac/wiki/UbuntuInstall |
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===SSB Demodulation=== |
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*Convert the *.auf files (and not the *.au files) using Audacity, note the sampling rate |
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*Wave source allows you to play the converted *.wav files |
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*Bandpass filter to single out the 3kHz (and get rid of the 1/f noise at the same time) |
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*Shift down to baseband with a cosine wave |
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*Low pass filter to single out the signal at the baseband (and to throw out the signal at +/- 2f) |
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*Use your favorite sink to hear/see the results |
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===Possibly promising links=== |
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[http://gnuradio.org/doc/doxygen/group__filter.html dOxygen filters] |
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===Questions=== |
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*What is dOxygen |
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*How to incorporate filters into GNU Radio/Companion |
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Revision as of 16:55, 10 December 2008
Installing Ubuntu
- VMWare Player
- Pre-compiled Ubuntu 8.10
- U:vmplanet
- P:vmplanet.net
GNU Radio + GNU Radio Companion
- GNU Radio Companion is installed with GNU Radio 3.2 and above. Install from the trunk. Synaptic Package Manager will only install 3.0.4
- GNU Radio Companion is the GUI for GNU Radio
Installing GNU Radio + GNU Radio Companion
- Grab the following files from mu/shared/class/engr/455/Adaptive Filter SDR Project/
- grc.tar.gz
- http://gnuradio.org/trac/wiki/UbuntuInstall
SSB Demodulation
- Convert the *.auf files (and not the *.au files) using Audacity, note the sampling rate
- Wave source allows you to play the converted *.wav files
- Bandpass filter to single out the 3kHz (and get rid of the 1/f noise at the same time)
- Shift down to baseband with a cosine wave
- Low pass filter to single out the signal at the baseband (and to throw out the signal at +/- 2f)
- Use your favorite sink to hear/see the results
Possibly promising links
Questions
- What is dOxygen
- How to incorporate filters into GNU Radio/Companion