本文提出了一种新型结构的自适应滤波器
称为组合时延自适应滤波器。这种新的结构与传统的查表结构自适应滤波器相比
具有复盖较长时延的信号响应和收敛速度快的特点。这种滤波器适用于ISDN U—接口全双工传输系统中作为自适应回波消除器。本文讨论了这种滤波器的算法
特性及应用
并给出了一组实验结果。
A new adaptive filter
called the combined time-delay adaptive filter
is proposed in this paper. Compared with the traditional lookup table adaptive filter
the new configuration can synthesize a signal response with a long time delay and has the characteristic of fast convergence speed. The new adaptive filter can be used as an echo canceller in ISDN U-interface full-duplex transmission system. The paper discusses the algorithm
characteristics and application of the filter. A set of experimental results are given.
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