Is anyone else here interested in actually trying this? I live near a fairly active small airport in Lansing, Illinois, and in the flight paths of everything going to/from Midway and Ohare, so combining this with ADSB might make for some interesting sources of calibration data, and a way to debug this algorithm.<p>I think a neighborhood of Raspberry Pi based cameras networked together could prove quite effective. I wonder if all the installed Ring door cameras could do this in a national security emergency.<p>I further wonder if it's being done to the US (with the current installed camera base) by China or others.