Li, Long, Pao, Wing Yi, Agelin-Chaab, Martin, Komar, John et Lang, Haoxiang.
2025.
« Investigating automotive sensor perception in rain: A case study on TOF and FMCW LiDAR ».
In Proceedings of the CSME-CFDSC-CSR 2025 International Congress (Montreal, QC, Canada, May 25-28, 2025)
Coll. « Progress in Canadian Mechanical Engineering », vol. 8.
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Résumé
With the rise of automated features offered in modern and autonomous vehicles, it is essential to understand the capabilities and limitations of the perception systems to ensure safe maneuvers. One of the challenging conditions is operating under adverse weather as soiling occurs on vehicle surfaces and the adherent particles cause degradation in visibility. In this study, the performance of automotive Light Detection and Ranging (LiDAR) sensors when driving in rain was investigated. The study was carried out using a wind tunnel and a novel rain simulation system to produce realistic and controlled conditions. In particular, two types of LiDARs employing the time-of-flight (TOF) and coherent ranging principles (Frequency-modulated continuous wave - FMCW) were evaluated under various adverse driving and rain conditions. In addition, the effects of sensor cover material properties were parameterized based on surface wettability, which resulted in diverse droplet dynamics under the exposure of wind and raindrops. It was found that the TOF LiDAR had better transmittance when a layer of water film was formed on a hydrophilic cover but has caused poor FMCW LiDAR performance. In contrast, the TOF LiDAR was nearly blinded when there were large quantities of small and semi-spherical droplets present on a hydrophobic cover, for which the signal beams were scattered and deflected. However, the FMCW LiDAR was marginally influenced by the non-wetting scenarios. The potential causes of the difference in behaviors were examined by reviewing the mechanisms of the two types of LiDARs.
| Type de document: | Compte rendu de conférence |
|---|---|
| Éditeurs: | Éditeurs ORCID Hof, Lucas A. NON SPÉCIFIÉ Di Labbio, Giuseppe NON SPÉCIFIÉ Tahan, Antoine NON SPÉCIFIÉ Sanjosé, Marlène NON SPÉCIFIÉ Lalonde, Sébastien NON SPÉCIFIÉ Demarquette, Nicole R. NON SPÉCIFIÉ |
| Date de dépôt: | 18 déc. 2025 15:16 |
| Dernière modification: | 18 déc. 2025 15:16 |
| URI: | https://espace2.etsmtl.ca/id/eprint/32443 |
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