Event:SoftwareDefinedRadioSDRFMDABontvangerworkshop: Difference between revisions
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== Prerequisites: == | == 1 Prerequisites: == | ||
Please bring your own RTL-SDR hardware (very cheap, $20-$40 or less) | Please bring your own RTL-SDR hardware (very cheap, $20-$40 or less) | ||
or other SDR hardware (USRP or other GNURadio supported SDR). | or other SDR hardware (USRP or other GNURadio supported SDR). | ||
There might be a few available @ revspace coin-op machine by the time the workshop starts. | There might be a few available @ revspace coin-op machine by the time the workshop starts. | ||
== | == 2. Quick introduction == | ||
Quick introduction into GNURadio companion 3.7.11.1 user interface and concepts and keyboard shortcuts | Quick introduction into GNURadio companion 3.7.11.1 user interface and concepts and keyboard shortcuts | ||
(have it preinstalled and git client to download the samplecode) | (have it preinstalled and git client to download the samplecode) | ||
== | == 3. Quick 'theory' of signal processing == | ||
This could take about an hour or 1.5 hrs of interactive session | This could take about an hour or 1.5 hrs of interactive session | ||
3.1 Real signals | |||
- real-sinewaves in the timedomain / displayed using time sink / oscillioscope | - real-sinewaves in the timedomain / displayed using time sink / oscillioscope | ||
- Multiplying real-sinewaves and frequency domain/spectrogram (mixing in radioterms) | - Multiplying real-sinewaves and frequency domain/spectrogram (mixing in radioterms) | ||
3.2 Complex signals | |||
- Quadrature or complex (IQ) sinewave signal sources and displaying in timedomain ('constellation' diagram) and frequency domain (FFT) | - Quadrature or complex (IQ) sinewave signal sources and displaying in timedomain ('constellation' diagram) and frequency domain (FFT) | ||
- Multiplying quadrature (IQ) sinewaves and spectrogram | - Multiplying quadrature (IQ) sinewaves and spectrogram | ||
3.3 Filtering complex signals | |||
- Filtering IQ signals using FIR filters with complex taps | - Filtering IQ signals using FIR filters with complex taps | ||
- (very quick) calculating FIR filter coefficients using gr-filter of inverse FFT/inverse DFT and windowing functions, impulse response of filter | - (very quick) calculating FIR filter coefficients using gr-filter of inverse FFT/inverse DFT and windowing functions, impulse response of filter | ||
== | == 4. Radio receivers and/or detectors == | ||
- Build a simple mono FM receiver using blocks with built-in feedback networks | - Build a simple mono FM receiver using blocks with built-in feedback networks | ||
- Build a RDS FM receiver and connect it with your RTL-SDR or other gnuradio-support SDR/radiodata input device | - Build a RDS FM receiver and connect it with your RTL-SDR or other gnuradio-support SDR/radiodata input device | ||
== | == 5. Bonus == | ||
Build with welle.io a SDR-based DAB+ receiver from source. For this a QTQuick 5.x installation might be required. | Build with welle.io a SDR-based DAB+ receiver from source. For this a QTQuick 5.x installation might be required. | ||
Revision as of 16:56, 17 April 2019
| Event Foundations Friday: Software Defined Radio workshop | |
|---|---|
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| Name | Foundations Friday: Software Defined Radio workshop
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| Duration | 2019-06-28 20:00 - 2019-06-28 23:00 |
| Information |
|
1 Prerequisites:
Please bring your own RTL-SDR hardware (very cheap, $20-$40 or less) or other SDR hardware (USRP or other GNURadio supported SDR). There might be a few available @ revspace coin-op machine by the time the workshop starts.
2. Quick introduction
Quick introduction into GNURadio companion 3.7.11.1 user interface and concepts and keyboard shortcuts (have it preinstalled and git client to download the samplecode)
3. Quick 'theory' of signal processing
This could take about an hour or 1.5 hrs of interactive session
3.1 Real signals - real-sinewaves in the timedomain / displayed using time sink / oscillioscope - Multiplying real-sinewaves and frequency domain/spectrogram (mixing in radioterms)
3.2 Complex signals - Quadrature or complex (IQ) sinewave signal sources and displaying in timedomain ('constellation' diagram) and frequency domain (FFT) - Multiplying quadrature (IQ) sinewaves and spectrogram
3.3 Filtering complex signals - Filtering IQ signals using FIR filters with complex taps - (very quick) calculating FIR filter coefficients using gr-filter of inverse FFT/inverse DFT and windowing functions, impulse response of filter
4. Radio receivers and/or detectors
- Build a simple mono FM receiver using blocks with built-in feedback networks - Build a RDS FM receiver and connect it with your RTL-SDR or other gnuradio-support SDR/radiodata input device
5. Bonus
Build with welle.io a SDR-based DAB+ receiver from source. For this a QTQuick 5.x installation might be required.
Attendees
| (Nick)Name | Has (some) SDR Reciever |
| cmpxchg | Yes |