Chirp Intercept — Capture FMCW Radar + Heat Map Detection + 24/7 Alert System + Replay-Back + WiFi CSI + Forensic Database

Full offensive-to-defensive pipeline: HackRF captures FMCW chirps via STFT + polyfit (R²>0.80), builds Range-Doppler heat map proving radar surveillance. Database of 5 known radar modules (TI IWR1443/IWR6843, Infineon BGT60, Aqara FP2, DFRobot SEN0395) matched via harmonic detection. AlertEngine runs 24/7 on Raspberry Pi scanning 6 bands at 2 Hz. HackRF replay-back at -20 dBm documents attacker waveform with cross-correlation >0.85. WiFi CSI through-wall tracking detected via beacon rate anomaly. SQLite chirp fingerprint database for persistent surveillance evidence.

Scene 43 of 109 in the StopBeingParanoid interactive 3D research collection. Requires JavaScript and WebGL2 for the interactive visualisation.

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If any of this frightens you: this site documents what signal physics makes possible in a laboratory, which is not evidence about what is happening to any individual. If you feel watched, targeted or unsafe, that distress is real and treatable. Read about paranoia, mental health and how to get help, or call a free 24/7 line — 988 in the US and Canada, 116 123 in the UK and Norway, 13 11 14 in Australia, or find your country at findahelpline.com.