@inproceedings{906a57cbe3514d84a11309a74a5a1ddb,
title = "High-precision ranging and speed measurement technology based on coherent dual-frequency laser",
abstract = "A coherent dual-frequency lidar architecture for long-distance high-precision ranging and velocity measurement is proposed, using the method of optical heterodyne detection, which can avoid complex optical coherence configurations. The system uses a dual-frequency laser with a beat frequency of 200MHz as the dual-frequency light source, and performs measurement through the principles of phase ranging and Doppler velocimetry. The experimental verification shows that the operating distance of the system reaches 3200m, the distance resolution is less than 0.5m, and the speed measurement accuracy range is ±0.25m/s. The results show that the system can realize long-distance high-precision single-point ranging and speed measurement.",
keywords = "Doppler effect, dual-frequency lidar, phase-based ranging, signal processing",
author = "Yuchen Jie and Changming Zhao and Xiaotian Li and Yabi Li and Yuxiao Xing and Zilong Zhang and Haiyang Zhang",
note = "Publisher Copyright: {\textcopyright} 2023 SPIE.; 2022 Applied Optics and Photonics China: Advanced Laser Technology and Applications, AOPC 2022 ; Conference date: 18-12-2022 Through 19-12-2022",
year = "2023",
doi = "10.1117/12.2651939",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Zhenxu Bai and Qidai Chen and Yidong Tan",
booktitle = "AOPC 2022",
address = "United States",
}