Tutorials

GNU Radio Academy

The following sequence of tutorials will carry a new user through the core GNU Radio concepts, while providing examples along the way. If you already have experience with GNU Radio, feel free to skip the first several.

1. A Brief Introduction to GNU Radio, SDR, and DSP
2. Introduction to GNU Radio Usage: GRC and Flowgraphs
3. Understanding Sample Rate
4. Simulation Examples (we recommend going through at least one):
   • QPSK Modulation / Demodulation
   • Frequency Shift Keying (FSK)
   • AM transmitter and receiver
   • Single Sideband transceiver
   • Narrowband FM transceiver
   • BPSK Demodulation
   • OFDM Basics
5. Using GNU Radio with Hardware
6. Understanding a Flowgraph's Python Code
7. Writing your own block (using Embedded Python Block)
8. Polymorphic Types (PMTs)
9. Stream Tags
10. Message Passing
11. Understanding ZMQ Blocks
12. Out of Tree modules
13. Writing the XML file for a block (for 3.7) or Writing the YAML file for a block (for 3.8+)
14. Writing blocks in C++

Developer Resources

• Volk- what it does, why it rocks, how to write new kernels
• Porting Existing OOTs from 3.7 to 3.8
• Porting Existing OOTs from 3.8 to 3.9
• Working with ALSA and Pulse Audio
• Using Visual Studio Code for Source level debugging of C++ OOTs
• Using Eclipse for Building and Source level debugging C++ OOTs
• Using Code::Blocks IDE for GNU Radio Development
• Git and GNU Radio
• How to use Octave or Matlab with GNU Radio
• The GNU Radio Scheduler