EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Lobsters·Sep 8·5 min read
pigeon: my experimental PHY (Part 0/12)
TL;DR
A new experimental physical layer (PHY) called 'pigeon' has been developed, focusing on radio frequency (RF) communication. The project aims to demystify RF technology through hands-on experimentation and accessible explanations.
✦ Why It Matters
Start experimenting with RF technology to deepen your understanding and potentially innovate in the field.
Key Takeaways
- Experiment with RF to gain practical knowledge.
- Understand the basics of OFDM and modulation techniques.
- Learn from the author's iterative development process.
- Use the 'pigeon' series as a framework for your own projects.
How It Works
The 'pigeon' PHY employs OFDM, which divides a radio signal into multiple subcarriers, allowing for efficient data transmission. Modulation techniques like QPSK and QAM-16 are used to encode data onto these subcarriers, while LDPC matrices provide error correction to ensure reliable communication.