High precision and fast method for absolute distance measurement based on resampling technique used in FM continuous wave laser ranging

Meng Xiang-Song; Zhang Fu-Min; Qu Xing-Hua

doi:10.7498/aps.64.230601

Abstract

Frequency modulated continuous wave (FMCW) laser ranging is one of the most interesting techniques for precision distance metrology. It is a promising candidate for absolute distance measurement at large standoff distances (10 to 100 m) with high precision and accuracy, and no cooperation target is needed during the measuring process. How to improve the measurement resolution in practice has been the research focus of the FMCW laser ranging in recent years.FMCW laser ranging system uses the method which may convert the measurement of flight time to the frequency measurement, while the ranging resolution can be determined by the tuning range of the optical frequency sweep in theory. The main impact-factor that reduces the resolution is the tuning nonlinearity of the laser source, which may cause an amount of error points within the sampling signal. So a dual-interferometric FMCW laser ranging system is adopted in this paper. Compared to the traditional Michelson scheme, an assistant interferometer is added. The assistant interferometer has an all-fiber optical Mach-Zehnder configuration, and the delay distance is at least 2 times longer than OPD (optical path difference) of the main interferometer. Because it provides the reference length, the length of the fiber must remain unchanged. The interference signal is obtained on the photodetector. At the time points of every peak and bottom of the auxiliary interferometer signal, the beating signal from the main interferometer is re-sampled. The original signal is not the equal time intervals, while the re-sampled signal is the equal optical frequency intervals. Based on the property of the re-sampled signal, a method by splicing the re-sampled signal to optimize the signal processing is proposed, by which the tuning range of the laser source limitation can be broken and high precision can be easily obtained. Also, a simple high-speed measuring method is proposed.Based on all the above principles, the two-fiber optical frequency-modulated continuous wave laser ranging system is designed. The delay fiber in the FMCW laser ranging system is 40.8 m long, and the tuning speed and tuning range of the laser source are set to 10 nm/s and 40 nm respectively. Experiments show that the optimization method can effectively improve the measurement resolution and measuring efficiency; in the 26 measuring ranges, 50 m resolution can be easily obtained and the error is less than 100 m.

Keywords:

PACS:

06.20.Dk	(Measurement and error theory)
06.30.Bp	(Spatial dimensions)
42.25.Hz	(Interference)
42.30.Lr	(Modulation and optical transfer functions)

Authors and contacts

1.
State Key Laboratory of Precision Measurement Technology and Instrument, Tianjin University, Tianjin 300072, China

Corresponding author: Zhang Fu-Min, zhangfumin@tju.edu.cn

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 51327006, 51275350), and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20120032130002).

References

[1]	Liu Z X, Zhu J G, Yang L H, Liu H Q, Wu J, Xue B 2013 Meas. Sci. Technol. 24 105004
[2]	Wu H, Zhang F, Cao S, Xing S, Qu X 2014 Opt. Express 22 10380
[3]	Liao S S, Yang T, Dong J J 2014 Chin. Phys. B 23 073201
[4]	Wu H, Zhang F, Li J, Cao S, Meng X, Qu X 2015 Appl. Opt. 54 5581
[5]	Roos P A, Reibel R R, Berg T, Kaylor B, Barber Z W, Babbitt W R 2009 Opt. Lett. 34 3692
[6]	Wang G C, Yan S H, Yang J, Lin C B, Yang D X, Zou P F 2013 Acta Phys. Sin. 62 070601 (in Chinese) [王国超, 颜树华, 杨俊, 林存宝, 杨东兴, 邹鹏飞 2013 物理学报 62 070601]
[7]	Cabral A, Rebordão J 2007 Opt. Engineering. 46 073602
[8]	Li Z D, Jiang Y S, Snag F, Wnag L C, Deng S G, Xin Y, Guo J P 2011 Acta Optica Sinica 31 0314001 (in Chinese) [李志栋, 江月松, 桑峰, 王林春, 邓士光, 辛遥, 郭泾平 2011 光学学报 31 0314001]
[9]	Roos P A, Reibel R R, Berg T, Kaylor B, Barber Z W, Babbitt W R 2010 Opt. Lett. 34 3692
[10]	Satyan N, Vasilyev A, Rakuljic G, Leyva V, Yariv A 2009 Opt. Express 17 15991
[11]	Iiyama K, Matsui S, Kobayashi T, Maruyama T 2011 IEEE Photonics Technol. Lett. 23 703
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3.	马超峰，姜琦，吴映，梁伟. 基于蓝光外腔半导体激光器的水下调频连续波激光测距. 光子学报. 2023(06): 89-97 . 百度学术
4.	宋鲁明，张福民，孙栋，林洪沂，黄晓桦，于淼，张乾. 基于可调谐激光器扫频干涉绝对距离测量方法研究进展. 红外与激光工程. 2022(05): 326-340 . 百度学术
5.	徐靖翔，孔明，许新科. 基于旋转不变技术信号参数估计的激光扫频干涉测量方法. 物理学报. 2021(03): 148-155 . 百度学术
6.	王国超，李星辉，颜树华，谭立龙，管文良. 基于飞秒光梳多路同步锁相的多波长干涉实时绝对测距及其非模糊度量程分析. 物理学报. 2021(04): 138-149 . 百度学术
7.	姜朔，刘博，王盛杰，赵彬. 基于相位拼接的调频连续波激光雷达跳模影响消除方法. 半导体光电. 2021(03): 447-450 . 百度学术
8.	宁新宁，田竹梅，王爱珍，郭红英. 基于调频激光器的自动测距系统研究. 激光杂志. 2020(04): 136-140 . 百度学术
9.	李雅婷，张福民，潘浩，史春钊，曲兴华. 调频连续波激光测距系统的振动补偿仿真研究. 中国激光. 2019(01): 166-173 . 百度学术
10.	张宏，袁星星，胡磊. 大气折射率和棱镜折射率对全站仪测距的影响. 徐州工程学院学报(自然科学版). 2019(01): 15-18 . 百度学术
11.	蔡芝蔚，宋俊锋，刘江. 基于无人机的建筑三维可视化测量方法仿真. 计算机仿真. 2019(05): 88-91+249 . 百度学术
12.	史春钊，张福民，潘浩，曲兴华，赫明钊. 基于相位补偿的调频连续波大长度测距中的色散校正. 红外与毫米波学报. 2018(05): 642-648 . 百度学术
13.	吉宁可，张福民，曲兴华，张桐，张铁犁，刘晓旭，谢阳. 基于相位差测频的调频连续波激光测距技术. 中国激光. 2018(11): 145-152 . 百度学术
14.	史春钊，张福民，潘浩，李雅婷，曲兴华. 正弦调频下大带宽激光调频连续波测距技术. 中国激光. 2018(12): 12-18 . 百度学术
15.	崔鹏飞，杨凌辉，林嘉睿，邾继贵. 飞秒光学频率梳在精密绝对测距中的应用. 激光与光电子学进展. 2018(12): 134-148 . 百度学术
16.	陈慧敏，刘伟博，顾健，王凤杰，马超. 调频连续波激光引信探测系统设计. 红外与激光工程. 2017(12): 66-72 . 百度学术
17.	姚艳南，张福民，曲兴华. 基于硬件的等光频间隔采样及频谱分析方法. 光学学报. 2016(12): 113-122 . 百度学术

其他类型引用(20)

[1]	Liu Z X, Zhu J G, Yang L H, Liu H Q, Wu J, Xue B 2013 Meas. Sci. Technol. 24 105004
[2]	Wu H, Zhang F, Cao S, Xing S, Qu X 2014 Opt. Express 22 10380
[3]	Liao S S, Yang T, Dong J J 2014 Chin. Phys. B 23 073201
[4]	Wu H, Zhang F, Li J, Cao S, Meng X, Qu X 2015 Appl. Opt. 54 5581
[5]	Roos P A, Reibel R R, Berg T, Kaylor B, Barber Z W, Babbitt W R 2009 Opt. Lett. 34 3692
[6]	Wang G C, Yan S H, Yang J, Lin C B, Yang D X, Zou P F 2013 Acta Phys. Sin. 62 070601 (in Chinese) [王国超, 颜树华, 杨俊, 林存宝, 杨东兴, 邹鹏飞 2013 物理学报 62 070601]
[7]	Cabral A, Rebordão J 2007 Opt. Engineering. 46 073602
[8]	Li Z D, Jiang Y S, Snag F, Wnag L C, Deng S G, Xin Y, Guo J P 2011 Acta Optica Sinica 31 0314001 (in Chinese) [李志栋, 江月松, 桑峰, 王林春, 邓士光, 辛遥, 郭泾平 2011 光学学报 31 0314001]
[9]	Roos P A, Reibel R R, Berg T, Kaylor B, Barber Z W, Babbitt W R 2010 Opt. Lett. 34 3692
[10]	Satyan N, Vasilyev A, Rakuljic G, Leyva V, Yariv A 2009 Opt. Express 17 15991
[11]	Iiyama K, Matsui S, Kobayashi T, Maruyama T 2011 IEEE Photonics Technol. Lett. 23 703
[12]	Baumann E, Giorgetta F R, Coddington I, Sinclair L C, Knabe K, Swann W C, Newbury N R 2013 Opt. Lett. 38 2026
[13]	Shi G, Zhang F M, Qu X H, Meng X S 2014 Acta Phys. Sin. 63 184209 (in Chinese) [时光, 张福民, 曲兴华, 孟祥松 2014 物理学报 63 184209]
[14]	Shi G, Zhang F, Qu X, Meng X 2014 Opt. Engineering 53 122402

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1.	张鹏，封治华，张鹏飞，赵渊明，阮友田，韩文杰，张辉，康朝阳. 利用匹配滤波的调频连续波激光测距技术研究. 激光技术. 2025(01): 53-61 . 百度学术
2.	郭俊康，秦礼，房光强，曾令斌. 大尺寸天线在轨组装测量方案的设计与评价. 成组技术与生产现代化. 2024(02): 1-15 . 百度学术
3.	马超峰，姜琦，吴映，梁伟. 基于蓝光外腔半导体激光器的水下调频连续波激光测距. 光子学报. 2023(06): 89-97 . 百度学术
4.	宋鲁明，张福民，孙栋，林洪沂，黄晓桦，于淼，张乾. 基于可调谐激光器扫频干涉绝对距离测量方法研究进展. 红外与激光工程. 2022(05): 326-340 . 百度学术
5.	徐靖翔，孔明，许新科. 基于旋转不变技术信号参数估计的激光扫频干涉测量方法. 物理学报. 2021(03): 148-155 . 百度学术
6.	王国超，李星辉，颜树华，谭立龙，管文良. 基于飞秒光梳多路同步锁相的多波长干涉实时绝对测距及其非模糊度量程分析. 物理学报. 2021(04): 138-149 . 百度学术
7.	姜朔，刘博，王盛杰，赵彬. 基于相位拼接的调频连续波激光雷达跳模影响消除方法. 半导体光电. 2021(03): 447-450 . 百度学术
8.	宁新宁，田竹梅，王爱珍，郭红英. 基于调频激光器的自动测距系统研究. 激光杂志. 2020(04): 136-140 . 百度学术
9.	李雅婷，张福民，潘浩，史春钊，曲兴华. 调频连续波激光测距系统的振动补偿仿真研究. 中国激光. 2019(01): 166-173 . 百度学术
10.	张宏，袁星星，胡磊. 大气折射率和棱镜折射率对全站仪测距的影响. 徐州工程学院学报(自然科学版). 2019(01): 15-18 . 百度学术
11.	蔡芝蔚，宋俊锋，刘江. 基于无人机的建筑三维可视化测量方法仿真. 计算机仿真. 2019(05): 88-91+249 . 百度学术
12.	史春钊，张福民，潘浩，曲兴华，赫明钊. 基于相位补偿的调频连续波大长度测距中的色散校正. 红外与毫米波学报. 2018(05): 642-648 . 百度学术
13.	吉宁可，张福民，曲兴华，张桐，张铁犁，刘晓旭，谢阳. 基于相位差测频的调频连续波激光测距技术. 中国激光. 2018(11): 145-152 . 百度学术
14.	史春钊，张福民，潘浩，李雅婷，曲兴华. 正弦调频下大带宽激光调频连续波测距技术. 中国激光. 2018(12): 12-18 . 百度学术
15.	崔鹏飞，杨凌辉，林嘉睿，邾继贵. 飞秒光学频率梳在精密绝对测距中的应用. 激光与光电子学进展. 2018(12): 134-148 . 百度学术
16.	陈慧敏，刘伟博，顾健，王凤杰，马超. 调频连续波激光引信探测系统设计. 红外与激光工程. 2017(12): 66-72 . 百度学术
17.	姚艳南，张福民，曲兴华. 基于硬件的等光频间隔采样及频谱分析方法. 光学学报. 2016(12): 113-122 . 百度学术

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