基于圆孔阵列调制的“猫眼”目标隐身技术  

Stealth Technology of "Cat-eye" Target Based on Circular Holes Array's Modulation

作　　者：刘秉琦[1] 周斌[1,2] 张悦[1] 闫宗群[1] 张瑜[1] 姜玉海 

机构地区：[1]军械工程学院光学与电子工程系 [2]中国人民解放军71192部队 [3]总装驻447厂军事代表室

出　　处：《光电工程》2012年第3期1-6,共6页Opto-Electronic Engineering

基　　金：军内科研计划资助项目

摘　　要：针对激光主动探测技术对光电装备造成的探测威胁,在不改变光电装备光学结构以及有限"牺牲"成像质量的前提下,提出利用圆孔阵列的光强调制作用降低光电装备的"猫眼"效应,实现隐身。基于单孔衍射成像原理及空间平移效应,从理论上给出并仿真分析了圆孔阵列远场夫琅和费衍射的光强分布特性,利用实验的方法对圆孔阵列用于"猫眼"目标隐身的效果进行了验证。结果表明,利用圆孔阵列可实现对典型"猫眼"目标回波的光强调制并造成回波损耗,"猫眼"目标隐身效果明显。Aiming at the threat of active laser detection system for electro optical devices based on ＂cat-eye＂ effect in battle field, a new method is put forward to eliminate ＂cat-eye＂ effect by using circular holes array＇s intensity modulation. Based on the principles of single hole＇s diffraction imaging process and spatial translation effect, intensity distribution characteristic of far field Fraunhofer diffraction for circular holes array is deduced and then simulated. The stealth effect of ＂cat-eye＂ target is proved by experimental method by using circular holes array without changing the optical structure of electro-optical device. The results show that the echo intensity of ＂cat-eye＂ target can be modulated by circular holes array, which causes echo energy＇s loss, while the effect on imaging quality is finite. ＂Cat-eye＂ target＇s stealth effect is remarkable by this method.

关 键 词：“猫眼”效应 圆孔阵列 目标隐身 光强调制 

分 类 号：TN248[电子电信—物理电子学]