Laser ranging precision in sending and receiving coaxial optical system in indoor instance

Gao Po; Hu Yihua; Zhao Nanxiang; Wang Yong

The precision of pulse laser ranging is the key factor of two-dimensional laser scanning imaging. It is very important to develop pulse laser ranging technology of sending and receiving coaxial optical system in indoor instance to improve the capability of two-dimensional laser scanning imaging. Relationship between the precision of pulse laser ranging and the laser echo energy was analyzed by simulation. The basic design scheme of optical system of the two-dimensional scanning imaging were proposed. In indoor instance, the nonlinear relationship between the laser echo energy and range of sending and receiving coaxial optical system was calculated and the nonlinear curve between the laser echo energy and range was delineated. Finally, the nonlinear relationship was verified by the actual test data and the effect of the nonlinear relationship on the precision of pulse laser ranging was analyzed. The study of thesis has important value in the design of system of laser ranging and the conclusion can be applied to perfect the design of optical system of pulse laser ranging in indoor instance.

1. State Key Laboratory of Pulsed Power Laser Technology (Electronic Engineering Institute),Hefei 230037,China;

2. Key Laboratory of Electronic Restriction of Anhui Province,Hefei 230037,China

Received Date: 2013-07-10

Rev Recd Date: 2013-08-11

Publish Date: 2014-03-25

Key words:

two-dimensional laser scanning imaging /
pulse laser ranging /
sending and receiving coaxial optical system /
laser echo

Abstract: The precision of pulse laser ranging is the key factor of two-dimensional laser scanning imaging. It is very important to develop pulse laser ranging technology of sending and receiving coaxial optical system in indoor instance to improve the capability of two-dimensional laser scanning imaging. Relationship between the precision of pulse laser ranging and the laser echo energy was analyzed by simulation. The basic design scheme of optical system of the two-dimensional scanning imaging were proposed. In indoor instance, the nonlinear relationship between the laser echo energy and range of sending and receiving coaxial optical system was calculated and the nonlinear curve between the laser echo energy and range was delineated. Finally, the nonlinear relationship was verified by the actual test data and the effect of the nonlinear relationship on the precision of pulse laser ranging was analyzed. The study of thesis has important value in the design of system of laser ranging and the conclusion can be applied to perfect the design of optical system of pulse laser ranging in indoor instance.

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Reference (17)

[1]
[2]	Ji Rongyi, Zhao Changming, Ren Xuecheng. High precision and high frequence pulse laser ranging system [ J ] . Infrared and Laser Engineering, 2011, 40(8): 1461-1464 . ( in Chinese) 纪荣祎, 赵长明, 任学成. 高精度高重频脉冲激光测距系统[J]. 红外与激光工程, 2011, 40(8): 1461-1464.
[3]	Dai Yang, Cheng Xuewu, Li Faquan, et al. Study on the relationship of return power with different reflection model of object in laser ranging [J]. Laser Journal, 2007, 28 (3):83-84. (in Chinese) 戴阳, 程学武, 李发泉, 等. 目标反射特性与激光测距回波强度关系的研究[J]. 激光杂志, 2007, 28(3): 83-84.
[4]
[5]
[6]	Zhang Leihong, Yang Yan, Zang Huaguo, et al. Reflective characteristics of target in laser rangefinder [J]. Chinese J Laser, 2008, 35(7): 1001-1004. (in Chinese) 张雷洪, 杨艳, 臧华国, 等. 目标反射特性对激光测距的影响[J]. 中国激光, 2008, 35(7): 1001-1004.
[7]
[8]	Jiang Ningyuan, Li Lei. The impact of laser echo waveform of slope on ranging precision [J]. Wireless Communication Technology, 2009(3): 55-58. (in Chinese) 姜宁远, 李磊. 倾斜地形回波波形对测距的影响[J]. 无线通信技术, 2009(3): 55-58.
[9]	Feng Guoxu, Chang Baocheng. Study of high precision laser ranging technolog [J]. Laser Infrared, 2007, 37 (11): 1137-1140. (in Chinese) 冯国旭, 常保成. 高精度激光测距技术研究[J]. 激光与红外, 2007, 37(11): 1137-1140.
[10]
[11]	Liu Peng, Li Ping, Chen Huimin, et al. Fluctuating threshold circuit based on constant fraction discrimination for pulse laser fuze[J]. Journal of Detection Control, 2009, 31(3): 19-23. (in Chinese) 刘鹏, 栗苹, 陈慧敏, 等. 脉冲激光引信恒比定时浮动阈值电路[J]. 探测与控制学报, 2009, 31(3): 19-23.
[12]
[13]	Li Mi, Song Yingsong, Yu Jing, et al. High precision laser pulse distance measuring technology [J]. Infrared and Laser Engineering, 2011, 40(8): 1469-1473. (in Chinese) 李密, 宋影松, 虞静, 等. 高精度激光脉冲测距技术[J]. 红外与激光工程, 2011, 40(8): 1469-1473.
[14]
[15]	Feng Longling. Method of simulated testing of pulse laser rangefinder[J]. Infrared and Laser Engineering, 2003, 32(2): 127-129. (in Chinese) 冯龙龄. 脉冲激光测距系统的仿真检测技术[J]. 红外与激光工程, 2003, 32(2): 127-129.
[16]
[17]	Chen Qiansong, Yang Chengwei, Pan Zhiwen, et al. A brief introduction on development of laser Time-of-Flight distance measurement technology[J]. Laser Infrared, 2002, 32(1): 7-10. (in Chinese) 陈千颂, 杨成伟, 潘志文, 等. 激光飞行时间测距关键技术进展[J]. 激光与红外, 2002, 32(1): 7-10.

Laser ranging precision in sending and receiving coaxial optical system in indoor instance

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