自适应通道均衡中对角加载法性能分析  

Analysis of Diagonal Loading Method for Improving Adaptive Channel Equalizer's Performance

作　　者：韩彦明 徐如海[2] 王振力[3] 

机构地区：[1]解放军空军驻沪宁地区军事代表室,南京210013 [2]南京电子技术研究所,南京210013 [3]解放军理工大学通信工程学院,南京210007

出　　处：《现代雷达》2007年第9期36-38,41,共4页Modern Radar

摘　　要：在自适应通道均衡中,为快速求解均衡器权系数,通常需要对矩阵直接求逆,而病态矩阵的出现带来了权系数求解的极大误差,严重影响均衡器的校正性能。该文在采用了基于对角加载的采样矩阵求逆算法基础上,有效地提高了权系数求解的精度。仿真实验表明,对角加载在解决矩阵病态的基础上,可以大大提高自适应均衡器的性能。In adaptive channel equalizing, that generalized inverse method is often used to solve an equalizer＇s weight coefficient, matrix＇s morbidity may severely degrade the equalizer＇s performance. This paper exploits the method of diagonal loading to solve the matrix＇s morbidity, and then that diagonal loading influencing on the equalizer＇s performance is studied. Computer simulation results are presented that diagonal loading can solve the matrix＇s morbidity, and at the same time adaptive channel equalizer＇s performance may be greatly improved.

关 键 词：自适应通道均衡 频率因子阵 对角加载 

分 类 号：TN911.5[电子电信—通信与信息系统]