适用于十字型正交幅度调制信号的多模盲均衡算法  

Multimodulus blind equalization algorithm for cross quadrature amplitude modulation signals

作　　者：霍亚娟[1] 葛临东[1] 王彬[1] 

机构地区：[1]信息工程大学信息工程学院,郑州450002

出　　处：《计算机应用》2009年第9期2578-2580,2585,共4页journal of Computer Applications

基　　金：河南省基础与前沿项目(082300413205)

摘　　要：在加权多模盲均衡算法的基础上,采用多模算法在处理十字型正交幅度调制(QAM)信号时的改进方案,充分利用十字型QAM信号的符号统计特性,采用分段线性模值,使误差模型与十字型QAM信号星座更加匹配。此外,还给出了不同信噪比下均方误差估计值与权值的对应关系。仿真结果表明,该算法更适合处理十字型QAM信号,具有较好的稳态性能。The authors presented a modified muhimodulus blind equalization algorithm for cross Quadrature Amplitude Modulation （QAM） signals. Based on Weighted Multimodulus Algorithm （WMMA）, the proposed algorithm, which applied the improved method of Muhimodulus Algorithm （MMA） to cross QAM signals, fully employed statistics of the symbols used in cross QAM signal constellations. With the help of piecewise linear moduli, it made a better match between error models and constellations. Additionally, this algorithm showed the relationship between Mean-Square Error （MSE） estimation and the weight term under various Signal-to-Noise Rate （（SNR）. The simulation results demonstrate that this algorithm provides superior steady-state performance, which makes it more suitable for cross QAM signals.

关 键 词：盲均衡 十字型正交幅度调制信号 多模算法 加权多模 

分 类 号：TN911.5[电子电信—通信与信息系统] TP393[电子电信—信息与通信工程]