就全光比较器的功能模型及性能指标提出见解。综述了用于帧头识别的光比较器最新研究进展,阐述了不同结构的光比较器的原理、优缺点,以及进一步改进的可能性。
presented. The reviewed. The advantages and The function of optical comparator is analyzed and its performance indicators are latest progress of the optical comparators for all optical header recognition are principles of different kinds of optical comparator are analyzed, and their disadvantages are also discussed.