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by mapt
253 days ago
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> This is not much to determine what craft is approaching us. Why do you have to do that exactly? Aircraft identification and aircraft detection are very different tasks. For detection, you need a tiny fractional difference in illumination (<1%) of one single pixel, that persists over time, and which shows up on two or three cameras separated for parallax. The Youtube channel Consistently Inconsistent has been doing a series on optical detection, after an offhand Elon Musk comment. https://www.youtube.com/watch?v=m-b51C82-UE https://www.youtube.com/watch?v=zFiubdrJqqI https://www.youtube.com/watch?v=YZkLQsv3huo Anything detected can be subjected to closer inspection with radars, optical telescopes, and infrared telescopes. |
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