反射式光电联合变换相关器的设计  

Joint Reflection Transform Correlator Design

作　　者：张永玲[1] 刘海峰[1] 陈致君[1] 

机构地区：[1]中北大学光电仪器厂,山西太原030051

出　　处：《山西大同大学学报（自然科学版）》2010年第1期33-35,共3页Journal of Shanxi Datong University(Natural Science Edition)

摘　　要：传统的联合变换相关器一般为单光路反馈系统,体积大且运行速度慢.针对其缺点,根据光电联合变换相关器探测的基本原理,设计了具有双光路的反射式光电联合相关器,其由计算机控制的电寻址液晶EALCD作为空间光调制器,并用面阵CCD作为探测器记录其联合变换功率谱;整个光学系统是由准直系统结构和傅立叶系统构成,其特点是体积小,并且运行速度快.The optical system structure of traditional joint transform correlator has single optical path feedback, the volume is large and runs slowly. To improve its performance, we designed an optical system with two optical path feedbacks which according to the basic principle of optical joint transform correlator. Electrically addressed liquid crystal displays （EALCD） controlled by the computer is used as spatial light modulator. In addition, CCD matrix camera as square law detector records joint transform power spectrum. The whole optical system is composed of a collimating and beam expanding system and Fourier transform system, the volume is smaller than before and runs fast.

关 键 词：联合变换相关器 准直扩束系统 傅立叶变换 

分 类 号：TH74[机械工程—光学工程]