COMMUNICATIONS SYSTEM USING ADAPTIVE FILTER THAT IS SELECTED BASED ON OUTPUT POWER
    2.
    发明申请
    COMMUNICATIONS SYSTEM USING ADAPTIVE FILTER THAT IS SELECTED BASED ON OUTPUT POWER 有权
    使用基于输出功率选择的自适应滤波器的通信系统

    公开(公告)号:US20090098828A1

    公开(公告)日:2009-04-16

    申请号:US11871184

    申请日:2007-10-12

    IPC分类号: H03H7/30 H04B1/10

    CPC分类号: H04B1/1027 H04L25/03038

    摘要: A communications system receives a modulated signal that carries encoded communications data. An adaptive filter has an input, a plurality of non-adaptive and adaptive filter taps with weighted coefficients, and an output. The received signal is passed through the adaptive filter and around adaptive filter and a switch selects which signal to pass to demodulator based on measured output power of the adaptive filter and of the original received signal. A demodulator and decoder receive the filtered output signal 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。 自适应滤波器具有输入,具有加权系数的多个非自适应和自适应滤波器抽头以及输出。 接收的信号通过自适应滤波器并在自适应滤波器周围,开关根据自适应滤波器的测量输出功率和原始接收信号选择哪个信号传递给解调器。 解调器和解码器接收滤波后的输出信号并对信号进行解调和解码以获得通信数据。

    Communications system using adaptive filter and selected adaptive filter taps
    3.
    发明授权
    Communications system using adaptive filter and selected adaptive filter taps 有权
    使用自适应滤波器和选择的自适应滤波器抽头的通信系统

    公开(公告)号:US08204164B1

    公开(公告)日:2012-06-19

    申请号:US11871208

    申请日:2007-10-12

    IPC分类号: H04B1/10

    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和信号调制的至少测量的输出功率之一来选择自适应滤波器抽头的数量和次序。 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。

    Communications system using adaptive filter circuit using parallel adaptive filters
    4.
    发明授权
    Communications system using adaptive filter circuit using parallel adaptive filters 有权
    采用并联自适应滤波器的自适应滤波电路的通信系统

    公开(公告)号:US08121236B1

    公开(公告)日:2012-02-21

    申请号:US11871189

    申请日:2007-10-12

    IPC分类号: H04B1/10

    摘要: A communications system receives a modulated communication signal that carries encoded communications data. A signal input receives the communication signal. An adaptive filter circuit is connected to the signal input and comprises N number of parallel adaptive filters. Each adaptive filter has non-adaptive and adaptive taps with weighted coefficients that are different in number from the respective other parallel adaptive filters within the adaptive filter circuit. A selection output circuit is connected to each adaptive filter and selects for output the adaptive filter having the most suppression or least output power or other criterion which can indicate a best choice to use of the N parallel adaptive filters. A demodulator demodulates the signal and a decoder receives the filtered output signal from the demodulator and decodes the signal to obtain the communications data.

    摘要翻译: 通信系统接收承载编码通信数据的调制通信信号。 信号输入接收通信信号。 自适应滤波电路连接到信号输入端,并包括N个并行自适应滤波器。 每个自适应滤波器具有非自适应和自适应抽头,其具有与自适应滤波器电路内的相应的其他并行自适应滤波器的数量不同的加权系数。 选择输出电路连接到每个自适应滤波器,并选择输出具有最大抑制或最小输出功率的自适应滤波器或其他标准,其可以指示使用N个并行自适应滤波器的最佳选择。 解调器对信号进行解调,解码器从解调器接收经滤波的输出信号,对信号进行解码以获得通信数据。

    Communications system using adaptive filter that is selected based on output power
    6.
    发明授权
    Communications system using adaptive filter that is selected based on output power 有权
    使用基于输出功率选择的自适应滤波器的通信系统

    公开(公告)号:US07860200B2

    公开(公告)日:2010-12-28

    申请号:US11871184

    申请日:2007-10-12

    IPC分类号: H04L1/10

    CPC分类号: H04B1/1027 H04L25/03038

    摘要: A communications system receives a modulated signal that carries encoded communications data. An adaptive filter has an input, a plurality of non-adaptive and adaptive filter taps with weighted coefficients, and an output. The received signal is passed through the adaptive filter and around adaptive filter and a switch selects which signal to pass to demodulator based on measured output power of the adaptive filter and of the original received signal. A demodulator and decoder receive the filtered output signal 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。 自适应滤波器具有输入,具有加权系数的多个非自适应和自适应滤波器抽头以及输出。 接收的信号通过自适应滤波器并在自适应滤波器周围,开关根据自适应滤波器的测量输出功率和原始接收信号选择哪个信号传递给解调器。 解调器和解码器接收滤波后的输出信号并对信号进行解调和解码以获得通信数据。

    Communications system using adaptive filter for interference reduction
    7.
    发明授权
    Communications system using adaptive filter for interference reduction 有权
    通信系统采用自适应滤波器进行干扰减少

    公开(公告)号:US08107572B1

    公开(公告)日:2012-01-31

    申请号:US11871174

    申请日:2007-10-12

    IPC分类号: H04B1/10

    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.

    摘要翻译: 通信系统接收携带编码通信数据的调制信号。 自适应滤波器电路具有多个自适应滤波器,每个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。 在所选择的自适应滤波器中,干扰降低电路响应于解调器的至少接收状态中的一种,通信系统使用的调制类型以及自适应滤波器的输入和输出功率,用于更新自适应滤波器的自适应增益 选择自适应滤波器抽头的数量和顺序,分离由自适应滤波器引入的多路径的间隔,将输入和输出归一化电路控制为自适应滤波器,并选择是否传送到解调器的信号是原始接收信号或由自适应滤波器输出的信号 。 解调器和解码器接收滤波后的输出信号并对信号进行解调和解码以获得通信数据。

    Communications system using adaptive filter with normalization circuit
    8.
    发明授权
    Communications system using adaptive filter with normalization circuit 有权
    通信系统采用自适应滤波器与归一化电路

    公开(公告)号:US08098781B1

    公开(公告)日:2012-01-17

    申请号:US11871180

    申请日:2007-10-12

    IPC分类号: H04B1/10

    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 input and output normalizing circuit that obtain sample values from a received signal input to or output from the adaptive filter to increase gain recovery based on type of modulation of encoded communication data, on state of demodulator (preamble search, preamble detected, data state) or other signal acquisition information. A demodulator and decoder receive the filtered output signal 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输入和输出归一化电路,该输入和输出归一化电路从输入到自适应滤波器的接收信号或从自适应滤波器输出的采样值获得采样值,以基于调制类型 编码通信数据,解调器的状态(前导码搜索,检测到前导码,数据状态)或其他信号获取信息。 解调器和解码器接收滤波后的输出信号并对信号进行解调和解码以获得通信数据。

    Communications system using adaptive filter and variable delay before adaptive filter taps
    9.
    发明授权
    Communications system using adaptive filter and variable delay before adaptive filter taps 有权
    自适应滤波器之前采用自适应滤波和可变延迟的通信系统

    公开(公告)号:US07864835B2

    公开(公告)日:2011-01-04

    申请号:US11871203

    申请日:2007-10-12

    IPC分类号: H03H7/30

    CPC分类号: H04L25/03019

    摘要: A communication system receives a modulated signal that carries encoded communication data. An adaptive filter has a plurality of adaptive filter taps and weighted coefficients and a variable delay circuit operative before the adaptive filter taps for separating the spacing of multipath introduced by adaptive filter and producing a filtered output signal with improved multipath performance. 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: 通信系统接收承载编码通信数据的调制信号。 自适应滤波器具有多个自适应滤波器抽头和加权系数,以及在自适应滤波器抽头之前操作的可变延迟电路,用于分离由自适应滤波器引入的多径的间隔,并产生具有改进的多径性能的滤波输出信号。 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。