公开(公告)号：EP2048842A2

公开(公告)日：2009-04-15

申请号：EP08017642.3

申请日：2008-10-08

申请人： Harris Corporation

发明人： Furman, William, N. ,  Nieto, John, Wesley ,  Kellermann, Fred, C. ,  Paladino, Brian, C.

IPC分类号： H04L25/03 ,  H04B1/10

CPC分类号： H04B1/10 ,  H03H17/0294 ,  H04L25/03038 ,  H04L25/03057 ,  H04L27/0008 ,  H04L2025/03375 ,  H04L2025/03566 ,  H04L2025/03611 ,  H04L2025/03745

摘要： A communications system receives a modulated signal that carries encoded communications data. An adaptive filter circuit has a plurality of adaptive filters each having a plurality of non-adaptive and adaptive filter taps with weighted coefficients. At a selected adaptive filter, an interference reduction circuit is responsive to one of at least a received state of a demodulator, the type of modulation used by communication system and the input and output power of adaptive filter for updating the adaptive gain of the adaptive filter, selecting the number and order of adaptive filter taps, separating the spacing of multipath introduced by adaptive filter, controlling input and output normalizing circuits to adaptive filter(s) and selecting if signal passed to demodulator is original received signal or signal output by adaptive filter. A demodulator and decoder receive the filtered output signal and demodulate and decode the signal to obtain the communications data.

公开(公告)号：EP2048841A2

公开(公告)日：2009-04-15

申请号：EP08017641.5

申请日：2008-10-08

申请人： Harris Corporation

发明人： Furman, William, N. ,  Nieto, John, Wesley ,  Kellermann, Fred, C. ,  Paladino, Brian, C.

IPC分类号： H04L25/03

CPC分类号： H04L25/08 ,  H04L1/0054 ,  H04L25/03038 ,  H04L25/03057 ,  H04L25/03127 ,  H04L25/03146 ,  H04L27/0008 ,  H04L27/0012 ,  H04L2025/03407 ,  H04L2025/0342 ,  H04L2025/03611 ,  H04L2025/03745

摘要： A communications system receives a modulated signal that carries encoded communications data. An adaptive filter has a plurality of non-adaptive and adaptive filter taps with weighted coefficients and an adaptive gain circuit for updating the adaptive gain of the adaptive filter responsive to a received state of a modem or the type of modulation used by communications system. A demodulator and decoder receive the filtered output signal from the adaptive filter and demodulate and decode the signal to obtain the communications data.

摘要翻译： 通信系统接收携带编码通信数据的调制信号。 自适应滤波器具有多个具有加权系数的非自适应和自适应滤波器抽头以及自适应增益电路，用于响应调制解调器的接收状态或通信系统使用的调制类型来更新自适应滤波器的自适应增益。 解调器和解码器从自适应滤波器接收经滤波的输出信号，并对信号进行解调和解码以获得通信数据。

公开(公告)号：EP2048843A2

公开(公告)日：2009-04-15

申请号：EP08017643.1

申请日：2008-10-08

申请人： Harris Corporation

发明人： Furman, William, N. ,  Nieto, John, Wesley ,  Kellermann, Fred, C. ,  Paladino, Brian, C.

IPC分类号： H04L25/03

CPC分类号： H04L25/03038 ,  H04L2025/03401 ,  H04L2025/0342 ,  H04L2025/03624

摘要： A communications system receives a modulated signal that carries encoded communications data. An adaptive filter has a plurality of non-adaptive and adaptive filter taps with weighted coefficients and a tap order selection circuit for selecting the number and order of adaptive filter taps based on one of at least measured output power from the adaptive filter and signal modulation. A demodulator and decoder receives the filtered output signal and demodulates and decodes the signal to obtain the communications data.

摘要翻译： 通信系统接收携带编码通信数据的调制信号。 自适应滤波器具有多个具有加权系数的非自适应和自适应滤波器抽头以及抽头顺序选择电路，用于基于来自自适应滤波器的至少一个测量输出功率和信号调制来选择自适应滤波器抽头的数量和顺序。 解调器和解码器接收经过滤波的输出信号并对信号进行解调和解码以获得通信数据。