[1]于舒娟,史学军,王立斌.基于QPSK系统的盲均衡TXK算法[J].南京师范大学学报(工程技术版),2004,04(03):038-40.
 YU Shujuan,SHI Xuejun,WANG Libin.Blind Equalization TXK Algorithm Based on QPSK System[J].Journal of Nanjing Normal University(Engineering and Technology),2004,04(03):038-40.
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基于QPSK系统的盲均衡TXK算法
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南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
04卷
期数:
2004年03期
页码:
038-40
栏目:
出版日期:
2004-09-30

文章信息/Info

Title:
Blind Equalization TXK Algorithm Based on QPSK System
作者:
于舒娟1 史学军1 王立斌2
1. 南京邮电学院电子工程系, 江苏南京210003; 2. 黑龙江省计量院, 黑龙江哈尔滨150036
Author(s):
YU Shujuan 1 SHI Xuejun 1 WANG Libin 2
1.Department of Electronic Engineering, Nanjing Institute of Posts and Telecommunications, Nanjing 210003, China; 2.Institute of Measurement and Verification of Heilongjiang Province, Harbin 150036, China
关键词:
盲均衡 单输入多输出信道 TXK 四相相移键控
Keywords:
blind equalization single- input multiply- output ( SIMO) channel TXK quadrature phase shift keying ( QPSK)
分类号:
TN929.533
摘要:
由于实际数字信息通过的信道是带限、非理想信道 ,将引起符号间干扰 ,如果不加补偿 ,会产生高的差错率 .均衡器是为补偿这些信道失真而设计的 .提出了基于四相相移键控系统 (QPSK)的TXK算法 .该算法能够有效地适用于实单输入多输出信道 (SIMO) ,其思想是利用信道Toeplitz估计复矩阵 ^H的实部估计发送序列 .通过基于经典文献信道仿真结果表明 ,该算法对于四相相移键控系统具有良好的盲信道均衡和盲信号序列检测能力
Abstract:
Because the channels for the actual digital communications signals are band- limited and non- ideal, symbol interferences will be caused, leading to high error rates if left uncompensated. The equalizers have been designed to compensate for the channel distortions. This article brings forward further the TXK Algorithm based on QPSK system. This algorithm can be applied to real SIMO channels. The principle is to estimate the transmission sequences by the evaluation of the real part of the channels. Simulation results indicate that this method of TXK has the better ability to equalize blind channels and to detect blind sequence in QPSK system.

参考文献/References:

[ 1] Tong L, Xu G, Kailath T. Blind Channel Identification and Equalization using Second- order statistics: A Time-Domain Approach[ J] . IEEE Trans Inform Theory, 1994, 40( 3) : 340- 349.
[ 2] Ding Z, Li Y. Blind equalization and identification[M] . New York: Marcel Dekker, 2000. 167 -193.
[ 3] Moulines E, Duhamel P, Cardoso J F, et al. Subspace Methods for the blind Identification of multichannel FIR filters [ J] . IEEE Trans Signal Processing, 1995, 43( 2) : 516- 525.
[ 4] Ding Z. Matrix Outer-Product DecompositionMethod for Blind Multiple Channel Identification [ J] . IEEE Trans on Signal Processing , 1997, 45( 12) : 3045 -3061.

备注/Memo

备注/Memo:
基金项目: 国家自然科学基金资助项目( 60172058) .
作者简介: 于舒娟( 1967- ) , 女, 讲师, 主要从事通信、系统仿真等方面的教学与研究. E-mail: ysj919@ sohu. com
更新日期/Last Update: 2013-04-29