测距
激光雷达
光学
火车
重复(修辞手法)
脉搏(音乐)
遥感
脉冲波
相关性
信号(编程语言)
激光器
物理
数学
探测器
计算机科学
地质学
电信
地理
语言学
哲学
几何学
地图学
程序设计语言
作者
Yan Kang,Xiaofang Wang,Tongyi Zhang,Wei Zhao
出处
期刊:Optics Letters
[The Optical Society]
日期:2024-03-15
卷期号:49 (6): 1628-1628
摘要
A single-photon lidar based on multi-repetition-rate pulse train correlation and accumulation is proposed, and a ranging experiment is conducted on a 32 m target. By accumulating the correlation ranging results of pulse trains with internal spacings of 80, 100, and 125 ns, the signal-to-noise ratio of the cross correlation function is improved by about three-fold, which enables our method to improve the ranging precisions by more than 20% compared with the single repetition-rate method, and the shorter the acquisition time, the more obvious the advantage will be. Experimental results show that at an acquisition time of 0.01 s, our method can still achieve a ranging precision of 2.59 cm, while the single repetition-rate method can no longer obtain effective ranging results at this time. This method will be of great significance for realizing high-speed, large-scale unambiguous single-photon lidar ranging.
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