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基于MEMS的LiDAR新方案通过同步的双激光束来提高检测范围

Chien-Wei Huang¹, Chun-Nien Liu^1,2, Sheng-Chuan Mao¹

¹Department of Electrical Engineering, National Chun Hsing University, Taichung 402, Taiwan.

Sensors (Basel, Switzerland)

|March 28, 2024

概括

本研究介绍了一种基于MEMS的LiDAR系统,使用双同步激光束来提高检测范围和数据精度. 这种新的方法通过使用辅助激光增加了16%的续航里程,从而降低了整体功耗.

科学领域:

光电学是指光电子产品.
机器人技术和自主系统
传感器技术传感器技术

背景情况:

对于自动驾驶汽车来说,LiDAR (光检测和距离) 是非常重要的.
增加检测范围和降低功耗是LiDAR开发的关键挑战.

研究的目的:

为了呈现一个基于MEMS的LiDAR系统与同步的双激光束.
为了提高检测范围和提高点云数据精度,而无需增加主激光功率.

主要方法:

使用了一种基于MEMS的新型LiDAR模块,并配备了用于点云生成的主要激光.
采用辅助激光束来放大信号噪声比,从而扩大检测范围.
评估系统性能,包括视野 (FOV),角度分辨率和最大检测距离.

主要成果:

通过使用1W主激光和0.355W辅助激光,实现了124米的最大检测距离,比107米提高了16%,使用1W主激光和0.355W辅助激光.
模拟显示,8W主激光和2.84W辅助激光的潜在最大检测距离为300米.
在长距离检测时,激光功率减少了30%,从而节省了成本.

结论:

基于MEMS的LiDAR中的同步双激光束有效地提高了检测范围并降低了功率要求.
拟议的LiDAR模块为自动驾驶汽车的远程检测提供了一个具有成本效益的解决方案.
这项技术可以在不影响激光功率效率的情况下,提高自主系统的情境意识.

关键词:

我们的成员LiDAR.辅助激光是一个辅助激光.长检测范围的探测范围很长.

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