基于盲均衡技术的宽带IQ不平衡补偿设计与实现  

Design and realization of wideband IQ imbalance compensation based on blind equalization

作　　者：唐婷[1] Tang Ting(Southwest China Institute of Electronic Technology,Chengdu 610036,China)

机构地区：[1]中国西南电子技术研究所,四川成都610036

出　　处：《电子技术应用》2023年第2期72-75,共4页Application of Electronic Technique

摘　　要：针对宽带信号的IQ不平衡问题,给出了基于盲均衡技术的补偿设计方法。该方法通过改进高速解调器的均衡器设计,采用自适应盲均衡技术计算IQ不平衡补偿滤波器,使得均衡器同时具有IQ不平衡补偿和减小码间串扰的功能。在工程应用中,该方法不会增加额外的资源消耗和硬件设计复杂度。测试结果表明,该方法可适用于多种调制方式信号,能有效补偿IQ不平衡。In order to solve the wideband IQ imbalance problem,a compensation design based on blind equalization is presented.An improved equalizer design is used in high speed demodulator,which computes IQ imbalance compensation filter by adaptive blind equalization technology,therefore the equalizer has the ability to compensate IQ imbalance and reduce inter symbol interfer‐ence.In engineering application,this method does not increase additional resource consumption and hardward design complexity.The test result shows this method can compensate IQ imbalance effectively in multiple modulation modes.

关 键 词：IQ不平衡 盲均衡 宽带信号 高速解调器 

分 类 号：TN76[电子电信—电路与系统]