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The central LED flashes in a pattern that is different for each vehicle.
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The patterns are chosen such that sampling effects do not create ambuguous signals. TODO reference MA Isabelle Tuelleners, cf. Nyquist–Shannon sampling theorem.
Vehicle ID | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |
Period of flashing, in number of frames | 4 | 7 | 10 | 13 | 16 | 7 | 10 | 13 | 16 | 19 | 10 | 13 | 16 | 19 | 22 | 13 | 16 | 19 | 22 | 25 | 16 | 19 | 22 | 25 | 28 |
LED illumination duration, in number of frames | 2 | 2 | 2 | 2 | 2 | 5 | 5 | 5 | 5 | 5 | 8 | 8 | 8 | 8 | 8 | 11 | 11 | 11 | 11 | 11 | 14 | 14 | 14 | 14 | 14 |
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