基于IQ失衡补偿技术的OFDM光纤通信系统研究  

OFDM Optical Fiber Communication System based on IQ Imbalance Compensation Technology

作　　者：谷军闪 GU Jun-shan(Department of Information and Electronic Engineering, Zhoukou Technical Vocational College, Zhoukou Henan 466000, China)

机构地区：[1]周口科技职业学院信息与电子工程系,河南周口466000

出　　处：《通信技术》2017年第12期2654-2661,共8页Communications Technology

摘　　要：通信系统中由于收发端元器件的产品缺陷易造成IQ失衡,进而对OFDM信号产生极为严重的干扰。为降低IQ失衡对OFDM通信系统造成的影响,同时避免对通信元器件的生产工艺提出严苛的要求而导致成本上升,通过研究ICA算法,得到了一种利用Fast-ICA算法进行IQ失衡补偿的方法。通过软件仿真模拟,验证了ICA在IQ失衡补偿技术中的可行性,可为以后IQ失衡补偿技术的研究提供借鉴。The product defects of receiving/transmitting components in the communication system would usually result in the IQ imbalance,thus producing extremely serious interference on the OFDF signal.To reduce the impact of IQ imbalance on OFDM communication system and avoid the strict requirement on the production technology of communication components and the rising costs,based on the study of ICA algorithm,the method which makes use of the Fast-ICA algorithm for the compensation of IQ imbalance is proposed and designed.The software simulation indicates the feasibility of ICA in the compensation of IQ imbalance,and this could provide a reference for future research on IQ imbalance compensation technology.

关 键 词：IQ失衡 OFDM光纤通讯技术 Fast-ICA算法 仿真模拟 

分 类 号：TN913.7[电子电信—通信与信息系统]