The Design and Simulation of the Variable Step-Size Adaptive Equalization Algorithm

摘要：

The influence of step-size to the performance of the adaptive equalization algorithm is researched in this paper. If the step-size factor is big, algorithm convergence rate and track rate are fast but state residual error is bigger after convergence. In contrast, if the step-size factor is small, algorithm convergence rate and track rate is slow but state residual error is smaller after convergence. Therefore, the need of the convergence speed and convergence precision to the step-size is contrary if the fix step-size is adopted. The Sigmoid function of the mean square error and the non-linear function of error signal are adopted as the step-size control factor in this paper, and several improved algorithm are gotten. The computer simulation shows that the convergence rate of the algorithm is improved and the state residual error of the algorithm is decreased.

关键词： equalization algorithm step-size factor convergence rate state residual error

作者: ZHANG Jin Liu LiMin

作者单位: The First Clinical Hospital of Shanxi Medical University, Taiyuan, China, 030001 The Second Hospital of Taiyuan City, Taiyuan, China, 030002

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）