光学
信号处理
激光雷达
调制(音乐)
信号(编程语言)
材料科学
计算机科学
物理
声学
雷达
电信
程序设计语言
作者
Zhihao Liu,Yinong Zeng,Chong Li,Zihan Yi,Xiaonan Tao,Hui Zhao,Jian Qiu,Kefu Liu
出处
期刊:Optics Letters
[The Optical Society]
日期:2024-09-16
卷期号:49 (20): 5727-5727
摘要
A light detection and range technology (LiDAR) system that enables rapid ranging under extremely low signal-to-noise ratios (SNRs) during daylight conditions based on a SiPM (silicon photomultiplier) detector is proposed. The system emits a sequence of modulated laser pulses by controlling the semiconductor laser and then processes the SiPM response signals using dynamic multithreshold. The experimental result shows that, under extremely low SNR of daylight, the system achieves a 100% success rate in continuous ranging of a low reflectivity target at 125 m, with a ranging precision of less than 20 cm and a ranging time of less than 10 µs. Our system provides a significant reference value for achieving high-speed, noise-resistant, miniaturized, practical, and low-cost LiDAR based on a SiPM.
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