자율주행 차량의 내장형 라이다 시스템에 대한 윈드실드 영향 평가

In this study, the effect of the vehicle windshield on the light detection and ranging (LiDAR) sensor signal was analyzed in constructing an embedded LiDAR system for an autonomous vehicle. Ten different types of tinted films were attached to the windshield to simulate the vehicle environment, and changes in the LiDAR signal transmission were observed. One-dimensional (1D) LiDAR sensors and Lambertian targets were used to derive data that passed through the windshield and reflected from the target. The changes in signal strength and distance measurements of the LiDAR sensor were quantitatively evaluated and analyzed. In experiments, the signal strength of the LiDAR sensor decreased and was scattered when transmitted through the windshield and some tinting films, leading to an increase in the uncertainty of the distance measurement accuracy. The experimental model proposed in this paper is expected to provide a basis for evaluating the effects of windshields and tinting films on LiDAR sensor signals in advance when designing an embedded LiDAR system for autonomous vehicles.