All-optical mode matching method and system for QPSK (Quadrature Phase Shift Keying) signal and electronic equipment

The invention provides an all-optical mode matching method and system for a QPSK (Quadrature Phase Shift Keying) signal and electronic equipment, and aims to replace a phase compression method in related technologies by doubling a phase, so that a target sequence can directly participate in a matching process. The complexity of the matching method is reduced, the symbol processing process is simplified, the efficiency of the matching method is improved, and pattern recognition can be completed quickly and effectively. And the number of optical devices used by the matching system is greatly reduced, the system cost is reduced, and on-chip integration of the matching system can be realized. 本申请提供了用于QPSK信号的全光模式匹配方法、系统、电子设备，通过对相位进行翻倍代替相关技术中的相位压缩方法，使目标序列可以直接参与匹配过程。降低匹配方法的复杂度，简化符号处理过程，提高匹配方法的效率，能够快速有效地完成模式识别。并且使匹配系统使用的光器件数量大幅减少，减少系统成本，有利于实现匹配系统的片上集成。