Long-range frequency-modulated continuous-wave LiDAR employing wavelength-swept optical frequency comb with ranging disambiguation

测距 激光雷达 带宽(计算) 激光器 计算机科学 干涉测量 光学 遥感 电信 物理 地质学
作者
Muhammad Suhail Bin Ahmad Sharifuddin,T. Nagata,Chao Zhang,Fumihiko Ito,Atsushi Nakamura,Yusuke Koshikiya
标识
DOI:10.1117/12.2656683
摘要

Rapid-aging civil infrastructures have become social issues worldwide. Developed countries have faced difficulties e.g. cost increase in infrastructure maintenance, shortage of highly-skilled human resources. Thereafter, infrastructures have been inspected infrequently e.g. every 1~10 year. 3D mapping powered by light detection and ranging (LiDAR) platforms has recently been brought to public attention. In infrastructure maintenance, LiDAR having high-precision and long-measurement range is expected to enhance inspection frequencies and lower the maintenance cost. Time-of-flight (ToF) approach is generally utilized for long-range measurement, however it suffers from low depth resolution. Although development of dual-comb interferometry enabled high-precision ToF rangefinders, sophisticated stabilization is required for two lasers. On the other hand, frequency-modulated continuous-wave (FMCW) LiDAR can perform ranging with a single laser. However, its measurement range is limited by its receiver bandwidth. Although FMCW LiDAR with low-speed analog-to-digital converters can conduct long-distance ranging by reducing its wavelength-sweeping rate, the measurement refresh rate is sacrificed. In this article, we propose a long-range FMCW LiDAR employing wavelength-swept optical frequency comb which overcomes ranging limitation caused by its receiver bandwidth. In addition, the spectrum of such optical frequency comb is apodised to circumvent its inherent ranging ambiguity. We have performed proof-of-concept experiments using the proposed LiDAR. With optical fibers for emulating beam propagation, we have succeeded in ranging corresponding to 1,605-m free-space propagation with a 10-MHz FMCW receiver. Our proposal will make an important contribution to infrastructure maintenance.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
落后的怀梦完成签到 ,获得积分10
1秒前
陈坤完成签到,获得积分10
3秒前
量子星尘发布了新的文献求助10
5秒前
斯文败类应助zgx采纳,获得10
6秒前
默默完成签到 ,获得积分10
6秒前
KY Mr.WANG完成签到,获得积分10
6秒前
20秒前
guoxingliu完成签到,获得积分10
24秒前
32秒前
阳佟水蓉完成签到,获得积分10
33秒前
gdgd完成签到,获得积分10
36秒前
量子星尘发布了新的文献求助10
38秒前
叮叮当当完成签到,获得积分10
40秒前
43秒前
43秒前
电致阿光完成签到,获得积分10
44秒前
ccc完成签到 ,获得积分10
46秒前
47秒前
zgx发布了新的文献求助10
49秒前
i2stay完成签到,获得积分10
49秒前
馒头完成签到,获得积分10
51秒前
MS903完成签到,获得积分10
56秒前
CJW完成签到 ,获得积分10
57秒前
韧迹完成签到 ,获得积分0
57秒前
mmd完成签到 ,获得积分10
57秒前
七一安完成签到 ,获得积分10
58秒前
浪麻麻完成签到 ,获得积分10
1分钟前
包容的剑完成签到 ,获得积分10
1分钟前
等待的大炮完成签到,获得积分10
1分钟前
注水萝卜完成签到 ,获得积分10
1分钟前
Chem34完成签到,获得积分10
1分钟前
1分钟前
量子星尘发布了新的文献求助10
1分钟前
hhh2018687完成签到,获得积分10
1分钟前
1分钟前
1分钟前
1分钟前
1分钟前
1分钟前
1分钟前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038039
求助须知:如何正确求助?哪些是违规求助? 3575756
关于积分的说明 11373782
捐赠科研通 3305574
什么是DOI,文献DOI怎么找? 1819239
邀请新用户注册赠送积分活动 892655
科研通“疑难数据库(出版商)”最低求助积分说明 815022