脉冲激光测距漂移误差的研究

赵大龙; 陈千颂; 秦来贵; 霍玉晶

中国激光, 2004, 31 (9): 1112, 网络出版: 2006-06-12

脉冲激光测距漂移误差的研究

Study on Walk Error in Pulsed Laser Range-Finding

论文大纲

赵大龙 ^*陈千颂秦来贵霍玉晶

作者单位

清华大学电子工程系, 北京 100084

激光技术激光测距漂移误差自触发脉冲 PN结 laser techniques laser range-finding walk error self-triggering PN junction

摘要

光脉冲接收是脉冲激光测距的关键技术之一。稳定有效地探测反射激光脉冲信号和提高脉冲激光测距仪的环境抗干扰能力,是光脉冲接收技术需解决的主要问题。对PIN光电二极管的光探测过程进行了理论分析。指出PIN管中的光生载流子和耗尽层电荷的相互作用导致了耗尽层宽度的改变,进而引起PIN管的光接收响应时间的变化。结合半导体基本理论,构建了相应的PIN管光探测过程理论模型,定义两个描述PIN结性能的特征参数

Abstract

The reception of laser pulses is one of the key technologies in the laser rangefinding. The stable and effective detection and the increased ability of anti-jamming are the main problems to be solved. In this paper, an elementary study on walk error in pulsed laser range finding is carried out. The photodiode response time is affected by the change of depletion layer width, which is caused by the interaction between depletion layer charges and photo-induced carriers. The basic theoretic model is set up to explain this process, and two characteristic parameters unit optical power sensitivity K and unit time jitter Δτp0 are introduced. The approximate relation between the photodiode response time, its jitter and the laser pulse power projected on the detector is obtained respectively, which are successfully employed to explain the walk error phenomena in the self-triggering pulsed time-of-flight laser rangefinding experiment.

参考文献

[1] Huang Hui, Cheng Bu-wen, Huang Yong-qing et al.. Experimental study on the tunable RCE photodetectors with built-in liquid-crystal layer [J]. Chinese J. Lasers, 2002, A29(10):908～910
黄辉,成步文,黄永清等. 集成液晶可调谐RCE光电探测器的实验研究[J]. 中国激光, 2002, A29(10):908～910

[2] Zhong Yuan, Pan Zhong, Li Lian-he et al.. A novel resonant cavity enhanced (RCE) photodetector with a flat-top and steep-edge response [J]. Chinese J. Lasers, 2002, A29(4):347～350
钟源,潘钟,李联合等. 一种具有平顶陡边响应的新型谐振腔增强型(RCE)光电探测器的理论分析与模拟[J]. 中国激光, 2002, A29(4):347～350

[3] Chen Qian-song, Yang Cheng-wei, Pan Zhi-wen et al.. A brief introduction on the development of Laser time-of-flight distance measurement technology [J]. Laser & Infrared, 2002, 32(1):7～10
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

[4] Zhang Zheng-yu, Sui Xiao-lin. Faint signal digital correlation detection of laser ranging: study and simulation [J]. Chinese J. Lasers, 2002, A29(7):661～665
章正宇,眭晓林. 激光测距弱信号数字相关检测技术的研究和仿真[J]. 中国激光, 2002, A29(7):661～665

[5] Chen Qian-song, Zhao Da-long, Yang Chen-wei et al.. Study on self-triggering pulsed time-of-flight laser rangefinding [J]. Chinese J. Lasers, 2004, 31(6):745～748
陈千颂,赵大龙,杨成伟等. 自触发脉冲飞行时间激光测距技术研究[J]. 中国激光, 2004, 31(6):745～748

[6] J. Nishizawa. Optical Electronics [M]. Beijing: Posts & Telecom Press, 1983. 208～209
J. 西泽润一. 光电子学[M]. 北京:人民邮电出版社, 1983. 208～209

[7] Chen Jie. Photoelectric conversion in PN junction of high-pure P-type silicon [J]. Semiconductor Optoelectronics, 1998, 19(3):208～209
陈杰. 高阻P型硅PN结中的光电转换[J]. 半导体光电, 1998, 19(3):208～209

[8] He Yie, Shen Yafa. An optical measurement method for PN junction depth [C]. ICMTS 1992. Proceedings of the 1992 International Conference on Microelectronic Test Structures, 16～19 Mar. 1992, pp166～169

[9] Gao Wenhuan, Liu Runsheng. Electronic Circuits [M]. Beijing: Higher Education Press, 1997, Chap.1
高文焕,刘润生. 电子线路基础[M]. 北京:高等教育出版社,1997,第一章

[10] Chen Dezhang, Zhang Chengquan, Qing Guangbi et al.. Research on laser damage threshold of photoelectric detector [J]. Laser Technology, 1995, 19(3):135～140
陈德章,张承铨,卿光弼等. 激光对光电探测器的损伤阈值研究[J]. 激光技术, 1995, 19(3):135～140

赵大龙, 陈千颂, 秦来贵, 霍玉晶. 脉冲激光测距漂移误差的研究[J]. 中国激光, 2004, 31(9): 1112. 赵大龙, 陈千颂, 秦来贵, 霍玉晶. Study on Walk Error in Pulsed Laser Range-Finding[J]. Chinese Journal of Lasers, 2004, 31(9): 1112.

脉冲激光测距漂移误差的研究

关于本站 Cookie 的使用提示

全站搜索

脉冲激光测距漂移误差的研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索