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Volume 29 Issue 5
Sep.  2013
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Suitability of “Cat’s eye” effect for reconnaissance by the scanning laser

  • Corresponding author: TAN Ji-chun, tanjichun@hotmail
  • Received Date: 2004-06-03
    Accepted Date: 2004-09-10
  • The principle and experimental technique of hiding optical instruments detection based on "Cat's eye" effect were described.The factors that influence the intensity of the reflection wave were analyzed both quantitatively and qualitatively with the method of ray tracing.Research results show that the incline and defocusing of reflection plane in optical instrument(such as telescope and camera) reduce the intensity of the "Cat's eye" reflection.For example,the ratio of the reflection energy of optical instrument and the pulse energy of scanning laser decreases from 3.3%(under the ideal reflection condition) to(0.03%)(for the defocusing) and 0.016%(for the incline) respectively,while the distance between the laser scanning setup and infrared camera is 1000m and the incidence angle of scanning laser is 0.3rad.
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  • [1] 赵勋杰,高稚允,张英远.基于"猫眼"效应的激光侦察机及其在军事上的应用[J].光学技术,2003,29(4):415~417.

    [2] 竺庆春,陈时胜.矩阵光学导论[M].上海:上海科学技术文献出版社,1991.31~67.

    [3] 福建光学技术研究所.光学镜头手册[M].北京:国防工业出版社,1980.34.

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Suitability of “Cat’s eye” effect for reconnaissance by the scanning laser

    Corresponding author: TAN Ji-chun, tanjichun@hotmail
  • 1. Department of Optical Engineering, National University of Defense Technology, Changsha 410073, China

Abstract: The principle and experimental technique of hiding optical instruments detection based on "Cat's eye" effect were described.The factors that influence the intensity of the reflection wave were analyzed both quantitatively and qualitatively with the method of ray tracing.Research results show that the incline and defocusing of reflection plane in optical instrument(such as telescope and camera) reduce the intensity of the "Cat's eye" reflection.For example,the ratio of the reflection energy of optical instrument and the pulse energy of scanning laser decreases from 3.3%(under the ideal reflection condition) to(0.03%)(for the defocusing) and 0.016%(for the incline) respectively,while the distance between the laser scanning setup and infrared camera is 1000m and the incidence angle of scanning laser is 0.3rad.

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