Analog Devices: Implementing OFDM Radar & DOA on DirectRF Platforms using IIO and GNURadio
summary
Implementation ports OFDM radar and DOA to an 8981 DirectRF platform using IIO and GNU Radio, reducing a raw 32 Gbit/s four‑channel stream to manageable 250 MS/s per channel baseband and fitting an OFDM burst into a single 260,000-sample frame to avoid buffer gaps. Hardware synchronization uses the built‑in TDD engine (24‑bit counter) to trigger DMA for repeatable TX/RX alignment; a 30–40 m reflector demo shows a clear range peak despite strong TX–RX coupling, and DOA blocks work after calibration.
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chapters (6)
- 0:00Start
- 4:30Hardware Datapath
- 5:31Hardware - Configuration
- 11:47Pulse Radar
- 21:53OFDM Radar - Demo
- 26:20TDD Engine - Pluto
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