A laser ranging method with high precision and large range in high speed based on phase measurement

被引：0
|
作者：
Zheng, Da-Qing [1 ]
Chen, Wei-Min [1 ]
Chen, Li [1 ]
Li, Cun-Long [1 ]
机构：
[1] Key Laboratory of Optoelectronic Technology and System of Ministry of Education, Chongqing University, Chongqing
来源：
Guangdianzi Jiguang/Journal of Optoelectronics Laser | 2015年 / 26卷 / 02期
关键词：
High precision; High speed; Large range; Laser ranging; Phase-shift measurement;
D O I：
10.16136/j.joel.2015.02.0796
中图分类号：
学科分类号：
摘要：
In order to meet the needs of high speed, high-precision and large-range laser ranging, the analyses of the problems are discussed on both single frequency and multi-frequency laser ranging methods based on phase-shift measurement. Based on characteristics of the needs of ranging speed, precision and ranging range, the laser ranging method with phase-shift measurement is proposed based on the techniques of frequency reduction and high precision time measurement. Moreover, the method of parameters selection on ranging system is established based on the ranging needs in sequential order of the ranging frequency, time-measurement precision and reference signal frequency, and also the experimental ranging system is set up to verify the ranging method under the conditions of many fileds with high speed, high-precision and large-range laser ranging. The experiment is performed and the experimental results show that the system has a ranging range of 500 m, a ranging precision of 1.08 mm and a ranging speed of 0.03-0.04 s under the conditions of a 300 kHz ranging signal of modulation, a 260 kHz reference signal and a time-measurement precision of 50 ps. The experiment verifies the effectiveness of the ranging method and system, which can lay the foundations for the high speed, high-precision and large-range ranging. ©, 2015, Board of Optronics Lasers. All right reserved.
引用
收藏
页码：303 / 308
页数：5
相关论文
共 15 条
  • [1] Gai Z.-G., Zhao J., Yang L., Development of a new laser intelligent water level measuring system, Journal of Optoelectronics·Laser, 24, 3, pp. 569-572, (2013)
  • [2] Zhang F.-M., Qu X.-H., Ye S.-H., Research on key algorithms for large scale measurement in subsection manufacture, Journal of Optoelectronics·Laser, 10, pp. 1368-1371, (2008)
  • [3] Jia F.-X., Ding Z.-L., Yuan F., Real-time laser range finding system for moving target based on all-phase fourier transform spectrum analysis, Acta Optica Sinica, 10, pp. 2928-2934, (2010)
  • [4] Wang K., Duan F.-J., Guo H.-T., Blade tip clearance measurement using dual frequency laser with large frequency difference, Journal of Opto-electronics·Laser, 24, 10, pp. 1984-1988, (2013)
  • [5] Liu M., Yang X.-Y., Liu C.-J., Phase shift laser range finding with a novel quadrature modulation method and system implementation, Chinese Journal of Lasers, 2, pp. 159-164, (2012)
  • [6] Le Y., Xu X.-Z., Li Z.-B., Resolution method of laser ranging ambiguity based on overdetermined equation system, Chinese Journal of Scientific Instrument, 33, 4, pp. 930-935, (2012)
  • [7] Mang O.-Y., Chen-Yi H., Junewen C., High-dynamic-range laser range finders based on a novel multimodulated frequency, Optical Engineering, 45, 2, (2006)
  • [8] Liu S., Tan J., Hou B., Multicycle synchronous digital phase measurement used to further improve phase-shift laser range finding, Measurement Science and Technology, 18, 6, (2007)
  • [9] Wang T., Research of the phase laser ranging technology, Laser & Infrared, 37, 1, pp. 29-31, (2007)
  • [10] Amann M.C., Bosch T., Lescure M., Laser ranging: a critical review of usual techniques for distance measurement, Optical Engineering, 40, 1, pp. 10-19, (2001)
12