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Hybrid frequency-time domain equalizer

机译:混合频域时域均衡器

摘要

A channel decoder employs a hybrid frequency-time domain equalizer for effectively combining a frequency domain equalizer with a time domain equalizer to achieve superior static and dynamic multi-path performance compared to conventional decision feedback equalizers. A frequency domain equalizer structure is included within the forward path of a time domain, decision feedback equalizer, with both the frequency domain and time domain portions employing a common error vector. Updates to the taps (frequency bins) may be adapted individually, or fully within the frequency domain without altering the feedback filter. Improved performance, including performance for noisy channels with deep notches, is achieved, and the frequency domain equalizer portion is relieved from equalizing minimum phase zeros of the channel.
机译:信道解码器采用混合频域-时域均衡器,与传统的判决反馈均衡器相比,可以有效地将频域均衡器与时域均衡器组合在一起,以实现出色的静态和动态多径性能。频域均衡器结构包括在时域的前向路径(决策反馈均衡器)中,而频域和时域部分均采用公共误差向量。可以在不改变反馈滤波器的情况下,单独地或完全在频域内适应对抽头(频率仓)的更新。实现了改善的性能,包括具有深陷波的噪声信道的性能,并且频域均衡器部分免于均衡信道的最小相位零。

著录项

  • 公开/公告号US7042937B2

    专利类型

  • 公开/公告日2006-05-09

    原文格式PDF

  • 申请/专利权人 DAGNACHEW BIRRU;

    申请/专利号US20010840203

  • 发明设计人 DAGNACHEW BIRRU;

    申请日2001-04-23

  • 分类号H03H7/30;H03H7/40;H03K5/159;

  • 国家 US

  • 入库时间 2022-08-21 21:40:53

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