A Visible Light FMCW Lidar System Based on LEDs

This paper presents a frequency-modulated continuous wave (FMCW) light detection and ranging (lidar) system based on visible light-emitting diodes (LEDs). In the proposed system architecture, the intensity of LEDs is modulated by an FMCW chirp. This paper presents and analyses such an FMCW lidar system. Furthermore, the results of the analysis are validated through initial measurements using an automotive headlight. With an optical modulation amplitude (OMA) of 3.95 dBm, which is much smaller than the optical average power, distances up to 15 meters were measured, demonstrating the potential of the proposed visible light FMCW lidar system.