While most automotive lidar products are amplitude-modulated systems based on pulsed laser diodes, frequency-modulated continuous wave (FMCW) lidar is an emerging technology trend. FMCW lidar uses CW laser diodes and radar signal processing methods to deliver accurate information on object velocity in addition to object distance. Another advantage of FMCW lidar is the reduced risk of interference from other light sources, such as lidars in passing vehicles. Companies developing innovative FMCW lidar technologies include ZVISION (China) and Blackmore (USA). Blackmore were acquired by the self-driving car company Aurora (USA) in May 2019. As automotive companies compete to achieve higher levels of vehicle autonomy, IDTechEx expects increased adoption of laser diodes in automotive markets for lidar systems and in-cabin monitoring applications.
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