Low-cost scanning LIDAR architecture with a scalable frame rate for autonomous vehicles

Autonomous vehicles need accurate 3D perception with a decent frame rate and high angular resolution to detect obstacles reliably and avoid collisions. We developed a low-cost scanning multichannel light detection and ranging sensor architecture allowing scalable frame rates by adjusting the number...

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Veröffentlicht in:Applied optics (2004) 2023-01, Vol.62 (3), p.675-682
Hauptverfasser: Fink, Maximilian, Schardt, Michael, Baier, Valentin, Wang, Kun, Jakobi, Martin, Koch, Alexander W
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Sprache:eng
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Zusammenfassung:Autonomous vehicles need accurate 3D perception with a decent frame rate and high angular resolution to detect obstacles reliably and avoid collisions. We developed a low-cost scanning multichannel light detection and ranging sensor architecture allowing scalable frame rates by adjusting the number of laser and detector pairs. Scanning is achieved by a pair of micro-electro-mechanical system (MEMS) mirrors. A control pattern for the MEMS mirrors to maximize the frame rate is presented. A built prototype based on the proposed architecture achieves a frame rate of 11.5 Hz, a field of view of 70 ×30 , and an angular resolution of 0.4°. The distance resolution is 6 cm. Reliable single-shot detection for low-reflective objects up to 19 m indoors and 11 m under direct sunlight exposure is achieved. A performance assessment based on the presented measurement system for recently available vertical-cavity surface-emitting laser arrays with power densities up to 1 / shows promising improvement potential.
ISSN:1559-128X
2155-3165
1539-4522
DOI:10.1364/AO.479765