对角加载对自适应均衡器性能影响的研究

The Study of Diagonal Loading Influencing on Adaptive Equalizer′s Performance

在自适应通道均衡中 ,一般采用最小二乘的广义求逆法求解均衡器系数。当随着均衡器阶数增加时 ,常常会遇到方阵病态的现象 ,严重影响了均衡器的校正性能 ,甚至使均衡器停止工作。本文分析了方阵产生病态的原因 ,并在此基础上 。

In adaptive channel equalizing, it is generally employed that generalized inverse method solves an equalizer′s weight coefficient based on least square. When the equalizer′s rank increases, square matrix′s morbidity often appears. It may severely degrade the equalizer′s performance and even make it stop working. The reason of square matrix′s morbidity is analyzed, and then the influence of diagonal loading on the equalizer′s performance is studied.