Embedded Computer Solutions for SDRs running GNU Radio
summary
Embedded systems for GNU Radio favor modular CPU modules over raw SoCs for reliability and supply-life; designs target Intel/AMD x86 for DSP-heavy SDR work and use modules to avoid complex power rails. Data latency and jitter get solved by separating sampling into a higher-priority process and threading rather than brute CPU horsepower. Storage strategy uses name-brand M.2/NVMe SSDs and overprovisioning to avoid NAND wear. RF details include short shielded micro‑coax runs to Ettus Research USRP v200i devices, GPS shielding and opposing board placement for u‑blox NEO‑M8, powered LNAs via bias T, and chassis tie points with zero‑ohm resistors for grounding and EMI tuning; manufacture is done with a US contract manufacturer.
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chapters (11)
- 0:00Embedded SDR solutions intro
- 1:45x86 vs ARM trade-offs
- 6:03SoC vs modular processors
- 8:51Minimizing SDR latency/jitter
- 9:32Data storage challenges
- 12:01Heat dissipation in designs
- 15:36EMI in SDR applications
- 21:14Grounding strategies
- 23:20Ruggedization requirements
- 24:47Field updates & recovery
- 25:52Certifications & parts hurdles
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