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by tverbeure 697 days ago
The Kraken RF project, which has multiple SDR radios next to each other, had demo code of a passive radar: the slight time delay by which signals arrived at the antennas could be used to detect large metal bodies (IOW: planes) in the sky.

They took down the demo code they were informed that they were violating ITAR regulations.

https://www.reddit.com/r/RTLSDR/comments/yu9rei/krakenrf_pul...