一种紧凑型SDF光学相关识别器  

Compact SDF Optical Recognition Matched Filter

作　　者：盛兆玄[1] 孙新利[1] 

机构地区：[1]第二炮兵工程学院,陕西西安710025

出　　处：《上海航天》2008年第1期47-50,共4页Aerospace Shanghai

摘　　要：提出了一种基于光学子波变换的综合判别函数(WFSDF)匹配滤波器。采用光学子波变换和综合判别函数,通过1个4f系统实现输入图像与综合判别函数(SDF)的子波变换的相关运算,根据计算全息方法制作复数匹配滤波器。计算机模拟仿真结果表明:与传统SDF匹配滤波相关相比,WFSDF匹配滤波器的相关峰锐化,识别率更高,且光学识别系统简化,能实现多目标的畸不变识别,利于光学相关器的小型化,在导弹的末制导系统中有广阔的应用前景。A synthetic discriminant function(SDF) matched filter based on optical wavelet transform(WFSDF) was proposed in this paper.With combining optical wavelet and SDF,the correlation between the wavelet transforms of input image and SDF was realized in only one 4f system by using of WFSDF.The WFSDF was realized by computer generating hologram.The simulation results showed that WFSDF sharpened the correlation peak with improved ratio of correlation recognition,in which the optical device was simple and the rotati...

关 键 词：光学模式识别 匹配滤波器 综合判别函数 计算全息 

分 类 号：O438.1[机械工程—光学工程]