An instrument is proposed for the automatic identification of nautical lights in river or maritime navigation, also applicable on mainland. The invention must address a specific problem consisting of optimizing the adjustment of the optical system for the different incoming light intensities.
The object of the invention is a headlamp identification system with a light pickup means for detecting a light signal formed by an alternating sequence with flashes and concealments emitted by a headlamp for a time interval. It further includes processing means coupled with the light pickup means for extracting a frequency spectrum in the detected light signal and for determining by statistical analysis whether a particular headlamp in the database corresponds to said frequency spectrum.
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