中文摘要：

在DSL系统中,串音信道信息是实现动态频谱管理或设计串音抑制算法的基础。该文利用DMT信号的循环平稳特性,提出了一种盲串音信道估计算法。新算法通过减小循环自相关矩阵信息冗余度来降低维数,以减小串音信道估计的复杂度。与已有的盲串音信道估计算法相比,新算法不仅计算复杂度小,且性能良好。计算机仿真结果表明,新算法的归一化均方误差明显小于原有算法。

英文摘要：

Crosstalk is the basis information for dynamic spectrum management or crosstalk cancellation in DSL sys-tem.In this paper,we propose a low complexity blind crosstalk estimation based on the cyclostationarity of DMT signals.The new method has lower computational complexity due to reducing the redundancy of cyclic autocorrela-tions matrix,and also possesses good performance.Computer simulation results show that the RMSE of the new method is much lower than the other method.