基于微光学与二元光学技术,设计了一种新型的平面折叠式光学相关器,将相关器中组成4f系统的傅里叶变换透镜、全息匹配滤波器、输入面和输出面集成到一个平面器件上,与另一平面偏振反射镜构成一个反射型的平面光学系统。讨论了相关器的系统结构设计、系统参数的设计,给出了具体的设计模型,计算出其体积可减小至约12 cm3。利用菲涅耳衍射数值模拟方法对系统的图像识别过程进行了仿真,得到了良好的相关输出结果,证实平面集成光学相关器具有很好的识别性能。

Novel planar folding optical correlator is proposed by means of micro-optical and binary optical techniques. The Fourier transform lenses, holographic matched filter, input plane and output plane are integrated on a common planar element. A reflective planar optical system is constructed by the correlator and a planar polarized mirror. The system structure and parameter design of this planar system are described, and a concrete model is proposed, with its volume reduced to about 12 cm3. At last, image recognition process of this correlator is simulated by using Fresnel diffractive method and gains excellent results, which proves the recognition capability of the system.