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本文描述光学相关器的基本特征,着眼点放在空间光学研究实验室(SORL)目前正在推向市场的专用联合变换设计上。该系统装有液晶电视(LCTV),作为输入器件,可提供高的特征鉴别度。这里,我们提出两个问题:第一是对于可用于绝大多数相关器的对准方法作出详细说明。利用干涉技术,还可测量相关器各元件所引起的波前误差。对于任何一个相关器而言,在建立的装置中,提供高质量的傅里叶信息都是十分重要的一步。第二个问题是如何在维持性能的同时缩小相关器构建结构的尺寸。本文中给出了对紧凑型相关器的讨论,介绍了两种新颖的设计。为了有效地工作,对于这些构建结构,需要细心注意文中所描述的初步对准和建立过程。
This article describes the basic features of an optical correlator and focuses on the design of a special joint transformation that is currently being introduced to the market by the Space Optical Research Laboratory (SORL). The system is equipped with a liquid crystal television (LCTV) as an input device that provides high signature discrimination. Here, we ask two questions: The first is a detailed description of the alignment methods that can be used with most correlators. The use of interference technology, but also the correlator components can be caused by the wavefront error. For any correlator, providing high-quality Fourier information in the setup is a very important step. The second problem is how to reduce the size of the correlator structure while maintaining performance. This article gives a discussion of compact correlators and introduces two novel designs. In order to work effectively, careful attention is given to the initial alignment and establishment described in the text for these structures.