用相干光学反馈技术消除放大的干扰

• 作 者: 吴桂英
• 出 处: 光学机械
• 发表日期: 1979年01期
• 关键词: 光学处理器 反馈技术 数字计算机 相干光学 材料标准 记录介质 对比度 处理器 波片 传递函数

1 概述相关光学处理器的缺点之一是在做滤波运算时没有灵活性,在大多数情况下,这样的处理器能完成像固定滤波这样的特殊任务。例如:数字计算机能以最大灵活性处理信息,这使它在大多数应用中具有很多优点。克服这样障碍的途径是利用可逆的记录介质,但是,这设备的存贮材料标准很高。本文将介绍在一定限度内灵活地完成滤光运

1 Overview One of the drawbacks associated with optical processors is the lack of flexibility in performing filtering operations, which in most cases can accomplish special tasks such as fixed filtering. For example: A digital computer can process information with maximum flexibility, which gives it many advantages in most applications. The way to overcome such obstacles is to use reversible recording media, however, the storage materials for this device are very standard. This article describes the flexibility to complete the filter transport within a certain limit