Software defined radio based Synthetic Aperture noise and OFDM (WiFi) RADAR mapping
summary
A reproducible SDR radar is built using PlutoSDR + B210 with transmitted pseudo‑random phase noise and a Wi‑Fi dongle for OFDM; frequency stepping (stacking) extends effective bandwidth to ~100 MHz. Range compression yields echoes at ~24–54 m matching the distant house, then a motorized 1.4 m synthetic aperture (quarter‑wavelength steps) produces ~4.5° beam giving ~8 m azimuth resolution at 100 m. Interferometric phase detects centimeter‑to‑millimeter motion but limits come from LO settling and weather. Wi‑Fi OFDM 55 MHz
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chapters (11)
- 0:00Introduction to speaker
- 1:00Project overview
- 2:41Radar system fundamentals
- 5:58Implementation details
- 8:02Synchronization and hardware
- 11:59Range mapping results
- 14:34Wi-Fi based radar
- 16:13Synthetic aperture radar
- 24:00Interferometric SAR
- 26:21Environmental error factors
- 28:07Conclusion
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