Catch Me If You Can: Laser Tethering with Highly Mobile Targets
Talkat 21st USENIX Symposium on Networked Systems Design and Implementation (NSDI '24) · 2024-04-16..04-18·
summary
Lasertag is a prototype system that fuses a steerable laser and image sensor via a beam splitter and fisheye lens, uses a MEMS mirror and retroreflective markers, and runs an automated ~10‑minute calibration mapping pixels to steering angles. A predictive steering algorithm increases effective steering up to 151Hz and handles targets up to 6.5 m/s and 49 m/s^2 accelerations at 6 m range. Experiments show a median 0.97 normalized power, 1.03cm offset and a 10^-8 median BER at 1 Gbps OOK.
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chapters (7)
- 0:00Laser tethering basics
- 1:42Laser tracking challenges
- 3:52Laser Tag optical design
- 8:31Predictive steering algorithm
- 11:40Performance metrics
- 13:43Results by motion
- 15:47Future work and apps
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