用于VDSL系统无线电干扰抑制的自适应Steiglitz-McBride陷波滤波器设计

Yaohui Liu, P. Diniz, T. Laakso
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引用次数: 5

摘要

提出了一种基于递归最小二乘(RLS)的复杂自适应陷波滤波器(ANF),该滤波器采用Steiglitz-McBride (SM)方法抑制高速数字用户线路(VDSL)系统中的射频干扰(RFI)。所提出的RLS-SM ANF收敛速度快,且计算复杂度低于使用递归预测误差(RPE)算法的直接形式约束ANF。该算法在处理多个RFI时特别具有优势。
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Adaptive Steiglitz-McBride notch filter design for radio interference suppression in VDSL systems
A recursive least square (RLS) based complex adaptive notch filter (ANF) using the Steiglitz-McBride (SM) method is proposed to suppress the radio frequency interference (RFI) in very-high-speed digital subscriber line (VDSL) systems. The proposed RLS-SM ANF converges fast and requires less computational complexity than the existing direct form constrained ANF using a recursive prediction error (RPE) algorithm. The proposed algorithm is specially advantageous when dealing with multiple RFI's.
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