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METHOD FOR ADJUSTING ADAPTATION CONTROL OF ADAPTIVE INTERFERENCE CANCELLER

机译:自适应干扰消除器的自适应控制调整方法

摘要

The present invention describes a method for temporal adjustment of adaptation control of an adaptive interference canceller (AIC) based on spatially weighted beamforming pre-processing. Most importantly, the present invention enhances the spatial blocking performance, while generating noise references for the AIC by a beamformer, by introducing dynamic adjustment to the AIC filter adaptation control. As a result, adaptation is effectively realized in two dimensions—spatial and temporal. The criterion for adjusting the AIC filter adaptation control is applied continuously following generation of the noise references. Essential in the invention is the comparison of the short-time powers or levels of the noise reference signals and desired signal beams and allowing the adaptation of the AIC filter under consideration only when the noise reference signal power is large enough in comparison with the desired signal power.
机译:本发明描述了一种用于基于空间加权波束成形预处理对自适应干扰消除器(AIC)的自适应控制进行时间调整的方法。最重要的是,本发明通过将动态调整引入AIC滤波器自适应控制,从而在通过波束形成器为AIC生成噪声参考的同时,增强了空间阻塞性能。结果,可以在空间和时间两个维度上有效地实现适应。在产生噪声参考之后,连续应用用于调整AIC滤波器自适应控制的标准。在本发明中重要的是比较噪声参考信号和期望信号光束的短时功率或电平,并且仅当噪声参考信号功率与期望信号相比足够大时才允许对所考虑的AIC滤波器进行自适应。功率。

著录项

  • 公开/公告号KR20060127078A

    专利类型

  • 公开/公告日2006-12-11

    原文格式PDF

  • 申请/专利权人 NOKIA CORPORATION;

    申请/专利号KR20067014849

  • 申请日2006-07-21

  • 分类号H04R3/00;H03B29/00;G10K11/16;G06F17/10;

  • 国家 KR

  • 入库时间 2022-08-21 20:42:44

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