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首页> 外文期刊>IEEE Transactions on Communications >Fast unbiased echo canceller update during ADSL transmission
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Fast unbiased echo canceller update during ADSL transmission

机译:在ADSL传输期间快速无偏的回声消除器更新

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摘要

This paper presents an efficient method for updating echo canceller (EC) coefficients in asymmetric digital subscriber line transceivers during transmission that removes the dependency of updates on the far-end signal. The new method improves on the frequency-domain EC architecture by Ho et al. (1996), in that it converges faster, improves the stability to perturbation, and is not prone to bias from pilot tones. The new EC updating system architecture is presented for both the central office and remote terminal systems and is fully compliant with the ITU-T G.DMT standard.
机译:本文提出了一种在传输过程中更新非对称数字用户线收发器中回声消除器(EC)系数的有效方法,该方法消除了更新对远端信号的依赖性。新方法改进了Ho等人的频域EC体系结构。 (1996年),因为它收敛更快,提高了扰动的稳定性,并且不容易从飞行员的语气偏见。为中心局和远程终端系统提供了新的EC更新系统架构,并完全符合ITU-T G.DMT标准。

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