| 基于多焦点全息透镜变换的实时高效非线性联合变换相关器 |
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| 引用本文： | 王红霞,李晓建,何俊发,刘长文.基于多焦点全息透镜变换的实时高效非线性联合变换相关器[J].红外与毫米波学报,2000,19(6):467-470. |
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| 作者姓名： | 王红霞 李晓建 何俊发 刘长文 |
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| 作者单位： | 第二炮兵工程学院物理室,陕西,西安,710025 |
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| 摘 要： | 提出一种实时高效非线性联合变换相关器，用多焦点全息透镜产生联合变换功率谱阵列，有效地利用了空间光调制器的使用面积和读出光能量，液晶光阀工作在近饱和区实时实现非线性相关，理论分析和实验结果表明，这种相关器将多个锐化的相关信号叠加在一起，可输出增强的相关信号。
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| 关 键 词： | 联合变换相关器 全息透镜 液晶光阀 非线性变换 空间光调制器 光学图像识别 衍射变换 菲涅耳衍射 |
REAL-TIME HIGH EFFICIENCY NONLINEAR JOINT TRANSFORM CORRELATOR BASED ON MULTI-FOCUS HOLOLENS CONVERSION |
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| WANG Hong-Xi,LI Xiao-Jian,HE Jun-F,LIU Chang-Wen.REAL-TIME HIGH EFFICIENCY NONLINEAR JOINT TRANSFORM CORRELATOR BASED ON MULTI-FOCUS HOLOLENS CONVERSION[J].Journal of Infrared and Millimeter Waves,2000,19(6):467-470. |
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| Authors: | WANG Hong-Xi LI Xiao-Jian HE Jun-F LIU Chang-Wen |
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| Abstract: | A real time high efficiency nonlinear joint transform correlator was proposed. In this correlator, a multi focus hololens was used to produce joint power spectral array so that the areas of the liquid crystal light valve (LCLV) and the output light energy can be used effectively. The LCLV worked in near saturated state in order to realize nonlinear joint transform correlation. The theoretical analysis and experimental results verified that the optical correlation signal can be enhanced by this correlator. |
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| Keywords: | joint transform correlator hololens liquid crystal light valve nonlinear transform |
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