【摘要】 首次用LiNbO₃:Fe晶体薄片作为匹配滤波器代替传统的光学相关器中的全息干板,成功地研制成实时光学相关器,在此光折变晶体中写入全息光栅的时间只需几秒～几分钟,因而与传统的光学相关器相比较,它具有快速,实时、简便及定位可靠等优点,用此器件实现了相关运算,卷积运算、特征字符识别等,更多还原

【Abstract】 Using LiNbO₃:Fe crystal sheet as a matched filter replaced the traditional hologram dry plate the real-time optical correlator was firstly realized. The writting time of hologram grating is about few seconds～few minutes. It is faster,real-time, simpler and localized reliabler than the traditional optical correlator. Correlation, convolution and characteristic word-symbol realization was successfully realized by this device.更多还原