适用于高速背板通信的动态增益与盲均衡协同校正自适应均衡模型  

Adaptive equalization model with dynamic gain and blind equalization cooperative coorection for high-speed backplane communication

作　　者：井凯 余宁梅[1] 戴扬 王希 JING Kai;YU Ningmei;DAI Yang;WANG Xi(School of Automation and Information Engineering,Xi′an University of Technology,Xi′an 710048,China;School of Information Science and Technology,Northwest University,Xi′an 710127,China;Institute of Microelectronics,ZTE Corporation,Xi′an 710065,China)

机构地区：[1]西安理工大学自动化与信息工程学院,陕西西安710048 [2]西北大学信息科学与技术学院,陕西西安710127 [3]中兴通讯股份有限公司微电子研究院,陕西西安710065

出　　处：《西北大学学报（自然科学版）》2019年第6期888-894,共7页Journal of Northwest University（Natural Science Edition）

基　　金：国家自然科学基金面上项目(61771388);陕西省教育厅科学研究计划资助项目(19JC029);西安市科技创新引导项目(201805037YD15CG21(11));西安理工大学博士启动金项目(103-451118006)

摘　　要：针对背板通信中信道的时变干扰,该文提出具有增益自适应和盲均衡动态校正功能的均衡模型。该模型基于符号-符号LMS算法,采用CTLE(连续时间线性均衡器)对受到信道干扰的信号进行初步补偿,同时利用增益监控算法和动态盲均衡自适应算法实现对信道幅度衰减的监测和补偿。而在DFE(判决反馈均衡器)中,同时结合半速率结构进行信号的补偿和判决,进一步消除误差。研究结果表明,该模型可对受干扰眼图进行大幅度的校正和补偿,提高传输信号的可靠性,实现均衡功能。Aiming at time-varying interference in backplane communication,an adaptive equalization model with gain adaptation and blind equalization was proposed in this paper.Based on sign-sign LMS algorithm,this model adopted continuous time linear equalizer(CTLE)to compensate the signal received distorted by the channel.At the same time,the gain monitoring algorithm and the dynamic blind equalization adaptive algorithm were used to monitor and compensate the amplitude attenuation of the channel.In decision feedback equalizer(DFE),this letter adopted half-rate structure for signal compensation and decision,further eliminating errors.Results have shown that this model can greatly correct and compensate the disturbed eye diagram,improving the reliability of the transmission signal and realizing the equalization function.

关 键 词：自适应 高速SerDes 均衡模型 判决反馈均衡器 

分 类 号：TP402[自动化与计算机技术] TP271.5