CSA-MWF Based Nonlinear Equalization for Data Relay Satellite Channel

摘要：

A low complexity nonlinear equalizer for data relay satellite channel is presented. The nonlinear equalizer is base on the truncated third order Volterra filter, which is approximately implemented in low complexity form using the recently developed Correlation Subtraction Architecture of the Multistage Wiener Filter (CSA-MWF). CSA-MWF offers significantly faster convergence, as well as low sample support. After the Volterra kernels are estimated through CSA-MWF in training mode, a pipeline structure of the nonlinear equalizer is described, more than half of multipliers are saved. The proposed algorithm is verified by computer simulation. Results show that the nonlinear equalization outperforms linear equalization with more than 1dB gain for 16QAM, and only one to fifth of samples are needed comparing to Least Mean Square algorithm based.

关键词： nonlinear filter Multistage Wiener Filter (MWF) Volterra filter channel equalization

作者: JIANG Bo LIU Cuihai WEN Dong ZHONG Quanming

作者单位: Department of Navigation and Communication, Navy Submarine Academy, Qingdao, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 417-421

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）