光纤水听器相位解调中的数值组合处理方法  

Numerical Combination Processing Method in Phase Demodulation of Fiber-Optic Hydrophone

作　　者：柯尊灵 王芳[1] 陈震 KE Zunling;WANG Fang;CHEN Zhen(The 23rd Research Institute,CETC,Shanghai 201900,China;Shanghai University,Shanghai 200444,China)

机构地区：[1]中国电子科技集团公司第二十三研究所,上海201900 [2]上海大学,上海200444

出　　处：《光纤与电缆及其应用技术》2023年第2期30-34,41,共6页Optical Fiber & Electric Cable and Their Applications

摘　　要：光纤水听器需要较为复杂的相位解调处理才能恢复出目标水声信号。分析了数值组合处理方法在3×3耦合器解调法中的应用。分析了外差解调法和相位生成载波(PGC)解调法的常规处理方式存在的问题,采用数值组合处理方法对相位解调过程进行了简化和改进,通过仿真和实测验证了数值组合处理方法的有效性和先进性。The fiber-optic hydrophone needs complex phase demodulation processing to recover the underwater acoustic signal of the target. The application of numerical combination processing method in 3×3 coupler demodulation is analyzed. The problems existing in the conventional processing methods of heterodyne demodulation and PGC demodulation are analyzed. The phase demodulation process is simplified and improved by using the numerical combination processing method. The effectiveness and progressiveness of the numerical combination processing method are verified through simulation and actual measurement.

关 键 词：光纤水听器 相位解调 数值组合处理方法 

分 类 号：TN247[电子电信—物理电子学] TN763