公开(公告)号：US20120140685A1

公开(公告)日：2012-06-07

申请号：US12957612

申请日：2010-12-01

申请人： Christian Lederer ,  Huemer Mario ,  Stefan Herzinger ,  Gernot Hueber ,  Burkhard Neurauter ,  Andreas Mayer

发明人： Christian Lederer ,  Huemer Mario ,  Stefan Herzinger ,  Gernot Hueber ,  Burkhard Neurauter ,  Andreas Mayer

IPC分类号： H04B3/20 ,  G06F17/10

CPC分类号： H04L27/3854 ,  H04L25/03057

摘要： One embodiment of the present invention relates to an adaptive filtering apparatus comprising first and second real valued adaptive filters, respectively configured to receive an adaptive filter input signal based upon a transmission signal in a transmission path. The first real valued adaptive filter is configured to operate a real valued adaptive filter algorithm on the input signal to estimate a first intermodulation noise component (e.g., an in-phase component) in a desired signal and to cancel the estimated noise. The second real valued adaptive filter is configured to operate a real valued adaptive filter algorithm on the input signal to estimate a second intermodulation noise component (e.g., a quadrature phase component) in the desired signal and to cancel the estimated noise. Accordingly, each filter operates a real valued adaptive algorithm to cancel a noise component, thereby removing complex cross terms between the components from the adaptive filtering process.

摘要翻译： 本发明的一个实施例涉及一种包括第一和第二实值自适应滤波器的自适应滤波装置，分别被配置为基于传输路径中的传输信号接收自适应滤波器输入信号。 第一实值自适应滤波器被配置为在输入信号上操作实值自适应滤波器算法以估计期望信号中的第一互调噪声分量（例如，同相分量）并消除所估计的噪声。 第二实值自适应滤波器被配置为在输入信号上操作实值自适应滤波器算法以估计期望信号中的第二互调噪声分量（例如，正交相位分量）并消除所估计的噪声。 因此，每个滤波器操作实值自适应算法以消除噪声分量，从而从自适应滤波处理中去除组件之间的复杂交叉项。