实时非线性光学联合变换相关器  

Real time Nonlinear Joint Transform Correlator

作　　者：秦玉文[1,2] 葛宝臻[1,2] 陈希明 张以谟[1,2] 简水生 

机构地区：[1]北方交通大学光波技术研究所 [2]天津大学现代光学仪器研究所

出　　处：《中国激光》1997年第9期837-841,共5页Chinese Journal of Lasers

基　　金：863计划;国家自然科学基金;光电子信息工程开放实验室资助

摘　　要：提出了利用国产液晶光阀（ＬＣＬＶ），使其工作于高对比度状态，实现实时非线性联合变换相关。通过光在液晶盒中传输特性的分析，阐明了ＬＣＬＶ的非线性调制原理，并通过计算机模拟和光学实验结果的比较证明用高对比度ＬＣＬＶ可以实现实时非线性联合变换相关。Utilizing a liquid crystal light valve (LCLV), which is produced in China and is made to work in high contrast state, to realize nonlinear joint transform correlation is proposed in this paper. The nonlinear modulation principle of the LCLV has been explained by analyzing the light propagation property in the liquid crystal box. The idea of using high contrast LCLV to realize nonlinear joint transform correlation is confirmed by comparing the computer simulation results with the optical experimental results.

关 键 词：光学模式识别 联合变换相关器 液晶光阀 

分 类 号：O437[机械工程—光学工程]