Vehicular optical ranging and communication system

In this paper, we developed a ranging and communication system for vehicular safety applications. The light-emitting diode (LED) array and photodetector (PD) array serve as the transceiver. The imaging technique is applied to the receiver, which can detect the angle of incident light and imaged different lights to corresponding PDs. Benefiting from this structure, this system is able to detect distance as well as location, and work between multiple users simultaneously. While keeping a low cost and compact size, it can still provide high lateral resolution, high frame rate, and interference rejection performance.

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