~/talk

LEO Satellite Reception and Doppler-Shift Correction

Talkat FOSSASIA Summit 2017 · 2017-03-17..03-19· [embedded-and-hardware, networking]
slides:none on file

Builds an SDR around a Novena FPRF + FPGA to receive UHF LEO downlinks from ~15–20 amateur satellites, ingesting public TLEs and using Gpredict for tracking. Uses GNU Radio blocks and a contributed phase-preserving Doppler correction module; the correction is proven in software but not yet fully integrated live. A two-antenna phasing harness briefly works in the field; major obstacles are multi-day local compilations and driver gaps, so cross-compiling and cloud builds are the immediate next steps.

AI-written summary · about

  1. 0:00Introduction
  2. 1:40Amateur Radio
  3. 9:04Compile Speed Matters
  4. 10:23The Next Steps
  5. 13:26The Future
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