@inproceedings{2cbd8e5d2f504e2fba4407a0fca4e1c7,
title = "Theoretical model and experimental verification on improving signal-to-noise of full-waveform LiDAR using differential optical path",
abstract = "A novel approach to improve signal-to-noise (SNR) of full-waveform LiDAR based on differential optical path is proposed. Two avalanche photodiodes are placed on the before and after the focus of a focusing lens to detect backscattered full - waveform signal (BFWS) respectively. The two BFWSs are sent to a subtraction circuit to suppress background noise. The mathematical model of the differential BFWS is developed. A prototype is built and the effectiveness of the proposed approach has been validated by experiments. The results show that comparing with the traditional method, the proposed method can improve SNR, which verifies the validity of the proposed method.",
keywords = "Avalanche photodiode, Backscattered fullwaveform signal, Differential optical path, Full-waveform LiDAR, Signal-to-noise",
author = "Yu Tao and Yang Cheng and Jie Cao and Qun Hao",
note = "Publisher Copyright: {\textcopyright} 2020 SPIE.; 2019 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments ; Conference date: 26-10-2019 Through 28-10-2019",
year = "2020",
doi = "10.1117/12.2549916",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Juan Liu and Baohua Jia and Xincheng Yao and Yongtian Wang and Takanori Nomura",
booktitle = "2019 International Conference on Optical Instruments and Technology",
address = "United States",
}