基于修正的变步长判决反馈均衡器算法仿真研究  

Simulation of Decision Feedback Equalization Algorithm Based on Improved Variable Step Size

作　　者：刘冰[1] 高俊[1] 窦高奇[1] 

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《通信技术》2007年第12期43-45,共3页Communications Technology

摘　　要：为了适应高速数据传输的要求,达到在多径衰落无线信道上较好的抗噪声性能,可采用自适应判决反馈均衡器。文中给出了基于LMS的变步长加动量项算法,并与固定步长进行了对比,计算机仿真表明,该算法在收敛速度和稳态失调上都有所提高。In this paper, the adaptive decision feedback equalizer is proposed to avoid the aberration caused by multipath fading wireless channel in high-speed data transmission, the algorithm with variable step size and momentum term based on LMS is described and compared with the algorithm with constant stop size in this paper. The simulation result has shown its better performances in convergence speed and steady state error.

关 键 词：高速数据传输 自适应均衡 判决反馈 变步长 动量项 

分 类 号：TN911.5[电子电信—通信与信息系统]