交叉极化干扰抵消在非线性干扰下的性能  

Performance of cross polarization interference cancelation in non-linear effect

作　　者：宋伟男[1] 昂志敏[1] 

机构地区：[1]合肥工业大学计算机与信息学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2013年第8期959-963,共5页Journal of Hefei University of Technology：Natural Science

摘　　要：为了充分利用无线频谱资源,交叉极化传输技术(CCDP)已被广泛使用,而交叉极化干扰抵消技术(XPIC)是其实现的关键技术。文章给出了一种新型的基于恒模-判决引导最小均方算法(CMA-DDLMS)的自适应XPIC模块,通过在CCDP仿真系统发送端发送的256QAM信号中加入由Saleh非线性模块产生的非线性干扰,在接收端分析其调制信号的性能改善,来探究该XPIC模块在非线性干扰下的性能。In order to make full use of the radio spectrum resources, tne cocnam （CCDP） technology has been widely used, and as the key technology for implementing CCDP, the crosspolarization interference cancelation（XPIC） technology is indispensable. In this paper, a novel adaptive XPIC model based the CMADDLMS algorithm is given. In order to explore the performance of the XPIC model in nonlinear effect, the performance improvement of the 256QAM modulation sig nal at the receiver is analyzed, which is transmitted by the CCDP transmitter of the simulation system containing the nonlinear interference generated by Saleh nonlinear model.

关 键 词：交叉极化传输 非线性干扰 Saleh模块 CMA-DLMS算法 XPIC模块 

分 类 号：TN925[电子电信—通信与信息系统]