一种无扫描三维成像激光雷达的实验研究

靳辰飞; 赵远; 张勇; 何姜; 孙秀冬

中国激光, 2009, 36 (6): 1383, 网络出版: 2009-06-08

一种无扫描三维成像激光雷达的实验研究

Experimental Research on a Scannerless 3D Imaging Laser Radar

论文大纲

靳辰飞 ^*赵远张勇何姜孙秀冬

作者单位

哈尔滨工业大学物理系, 黑龙江哈尔滨 150001

激光技术激光雷达增益调制距离像 laser technique laser radar gain modulation range image

摘要

研究了一种无扫描三维成像激光雷达。采用脉冲固体激光器作为发射光源, 而带有像增强器的CCD(ICCD)作为成像探测器。激光器发射光脉冲的同时用随时间单调变化的高压调制ICCD中的像增强器, 使其产生随时间单调变化的增益调制, 这样不同距离的目标回波被放大的程度不同。通过对被放大信号能量的比较分析, 就可以解算各个脉冲的飞行时间, 从而得到各个脉冲对应的距离。结果验证了这种成像系统可有效地消除回波强度不均匀性的影响。通过室内成像实验验证系统成像, 在35～41 m的距离上成功地获取了目标的距离像, 测距精度可达1 m以下。

Abstract

A scannerless 3D imaging laser radar is developed. A pulsed solid state laser is used as source with image intensified CCD (ICCD) as imaging detector. When the laser source transmits light pulse to a target scene, the image intensifier of ICCD is modulated with the monotone time-variant high voltage. High voltage signal controls the image intensifier to produce the monotone time-variant gain modulation, which leads to different amplification factor on return light reflected from different range. By analyzing and comparing the energy of amplified signals, we can calculate the flight time of every return light and then get the range of the corresponding target. Results demonstrate that the system can effectively eliminate the effect of non-uniform of the return light intensity. An indoor imaging experiment is performed for demonstrating the feasibility of system, and range image of targets from 35 to 41 meters distance is successfully acquired and the range accuracy can be less than 1 meter.

参考文献

[1] J. Christopher Dries, Brian Miles, Roger Stettner. A 32×32 pixel FLASH laser radar system incorporating InGaAs PIN and APD Detectors[C].SPIE,2004,5412:250～256

[2] 魏靖松, 程元丽, 徐强等. 单狭缝条纹管激光雷达的成像[J].中国激光, 2008, 35(4)：496～500

Wei Jingsong, Cheng Yuanli, Xu Qiang et al.. Imaging by single-slit streak tube laser lidar[J].Chinese J. Lasers,2008,35(4): 496～500

[3] 李思宁,王骐,刘金波等. 条纹管激光成像系统空间分辨力实验研究[J].光学学报,2007,27(6):1023～1026

Li Sining, Wang Qi, Liu Jinbo et al.. Experimental research on resolution of streak tube imaging lidar[J].Acta Optica Sinica,2007,27(6) :1023～1026

[4] 李思宁,广宇昊,臧俊恒等.条纹管激光成像雷达数据处理系统分析与设计[J].中国激光,2008,35(6):943～946

Li Sining,Guang Yuhao,Zang Junheng et al.. Analysis and design of data processing system based on streak tube imaging lidar[J]. Chinese J. Lasers,2008,35(6):943～946

[5] William Ruff, John Bruno, Steve Kennerly. Self-mixing detector candidates for an FM/CW ladar architecture[C].SPIE, 2000,4035:152～162

[6] Deni Bonnier, Vincent Larochelle, Active Surveillance Group. A range-gated active imaging system for search and rescue, and surveillance operations[C].SPIE,1996,2744:134～145

[7] John P. Anthes, Phil Garcia, Joe T. Pierce. Non-scanned LADAR imaging and applications[C]. SPIE,1993,1936: 11～22

[8] John Sackos, Bart Bradley, Carl Diegert. Scannerless terrain mapper[C].SPIE,1996,2810: 144～153

[9] Colin L. Smithpeter, Robert O. Nellums, Steve M. Lebien. LADAR measurements of the international space station[C].SPIE,2001,4377: 65～72

[10] Phil Garcia, John Anthes, Joe T.Pierce. Characterization of a scannerless LADAR system[C]. SPIE,1993,1936: 23～30

[11] Colin L. Smithpeter, Robert O. Nellums, Steve M. Lebien. A miniature high-resolution laser radar operating at video rates[C].SPIE,2000, 4035:279～286

[12] 吕华, 苏建忠.无扫描四维激光成像技术研究[J].红外与激光工程,2007,36(增刊):202～205

Lü Hua,Su Jiangzhong. Scannerless 4D imaging technology[J].Infrared and Laser Engineering,2007,36(suppl.): 202～205

[13] 严惠民,倪旭翔,陈奇霖. 无扫描三维激光雷达的研究[J].中国激光, 2000, A27(9):861～864

Yan Huimin, Ni Xuxiang, Chen Qilin. Study of scannerless laser radar[J]. Chinese J. Lasers,2000,A27(9):861～864

[14] S.E.Moran,B.L.Ulich,W.P.Elkins. Intensified CCD(ICCD)dynamic range and noise performance[C].SPIE, 1997,3173:430～457

[15] . 基于ICCD的空间微光成像系统成像性能研究[J]. 航天返回与遥感, 2007, 28(3): 6-10.

. Research on the imaging performance of space low light level imaging system based on ICCD[J]. Spacecraft Recovery & Remote Sensing, 2007, 28(3): 6-10.

[16] . 用于微光成像的BCCD,ICCD,EBCCD性能分析[J]. 北京理工大学学报, 2002, 22(1): 109-112.

. Performance analysis of low light level image sensors: BCCD,ICCD,EBCCD[J]. Journal of Beijing Institute of Technology, 2002, 22(1): 109-112.

靳辰飞, 赵远, 张勇, 何姜, 孙秀冬. 一种无扫描三维成像激光雷达的实验研究[J]. 中国激光, 2009, 36(6): 1383. Jin Chenfei, Zhao Yuan, Zhang Yong, He Jiang, Sun Xiudong. Experimental Research on a Scannerless 3D Imaging Laser Radar[J]. Chinese Journal of Lasers, 2009, 36(6): 1383.

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