利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

21 条记录 (耗时 0.024 秒)

    Least squares adaptive lattice equalizer
    12.
    发明授权
    Least squares adaptive lattice equalizer 失效
    最小二乘自适应阵列均衡器

    公开(公告)号：US4397029A

    公开(公告)日：1983-08-02

    申请号：US235213

    申请日：1981-02-17

    申请人： Edgar H. Satorius ,  James D. Pack ,  Mark J. Shensa

    发明人： Edgar H. Satorius ,  James D. Pack ,  Mark J. Shensa

    IPC分类号： H04L25/03

    CPC分类号： H04L25/03038 ,  H04L2025/03458

    摘要： Equalizer apparatus is provided which includes a number of successively cled lattice stages, each of the stages comprising a selected configuration of adjustable electrical components, the input to the first stage of the successively coupled lattice stages comprising the output of a data transmission channel. The equalizer apparatus further includes a subtractor device coupled to the lattice stages for providing a succession of error terms, each of the error terms comprising an accumulation of the squares of a number of error quantities, each of the error quantities indicating the difference between an undistorted training signal, in a sequence of training signals which are received by the subtractor device, and the same training signal after it has travelled through the data transmission channel and is received by the lattice stages. A component adjust device is coupled to respective components of the lattice stages for iteratively adjusting the components in accordance with a least squares procedure, the components being adjusted each time a training signal is received by the subtractor device and the lattice stages, the iterative adjustments continuing so that at the conclusion of the training sequence, the subtractor device generates an error term which is within a prespecified error limit.

    摘要翻译： 提供均衡器装置，其包括多个连续耦合的晶格级，每个级包括可调电气部件的选定配置，连续耦合的晶格级的第一级的输入包括数据传输通道的输出。 均衡器装置还包括耦合到晶格级的减法器装置，用于提供一系列误差项，每个误差项包括多个误差量的平方的积累，每个误差量指示不失真的差异 训练信号在减法器装置接收的训练信号序列中，以及相同的训练信号在其经过数据传输通道并被格子级接收之后。 组件调整装置耦合到晶格级的相应部件，以根据最小二乘法迭代地调整部件，每当由减法器装置接收到训练信号和晶格级时调整部件，迭代调整继续 使得在训练序列结束时，减法器装置产生在预先指定的误差极限内的误差项。

    Devices and methods for machine learning assisted sphere decoding
    13.
    发明授权
    Devices and methods for machine learning assisted sphere decoding 有权

    公开(公告)号：US11888655B2

    公开(公告)日：2024-01-30

    申请号：US17620715

    申请日：2020-06-23

    申请人： INSTITUT MINES-TELECOM

    发明人： Ghaya Rekaya ,  Aymen Askri

    IPC分类号： H04L25/03 ,  G06N20/10 ,  G06N3/048

    CPC分类号： H04L25/03242 ,  G06N3/048 ,  G06N20/10 ,  H04L2025/03458 ,  H04L2025/03464

    摘要： A decoder for decoding a signal received through a transmission channel represented by a channel matrix using a search sphere radius. The decoder comprises a radius determination device for determining a search sphere radius from a preliminary radius. The radius determination device is configured to: i. apply a machine learning algorithm to input data derived from the received signal, the channel matrix and a current radius, the current radius being initially set to the preliminary radius, which provides a current predicted number of lattice points associated with the current radius; ii. compare the current predicted number of lattice points to a given threshold; iii. update the current radius if the current predicted number of lattice points is strictly higher than the given threshold, the current radius being updated by applying a linear function to the current radius; Steps i to iii are iterated until a termination condition is satisfied, the termination condition being related to the current predicted number, the radius determination device being configured to set the search sphere radius to the current radius in response to the termination condition being satisfied.

    Method and system for temporal autocorrelation filtering
    15.
    发明授权
    Method and system for temporal autocorrelation filtering 有权
    时间自相关滤波方法与系统

    公开(公告)号：US07733943B2

    公开(公告)日：2010-06-08

    申请号：US11972321

    申请日：2008-01-10

    申请人： Carroll Philip Gossett ,  Michial Allen Gunter

    发明人： Carroll Philip Gossett ,  Michial Allen Gunter

    IPC分类号： H04B1/69 ,  H04B1/707 ,  H04B1/713

    CPC分类号： H04B1/707 ,  H04L25/03038 ,  H04L2025/03458 ,  H04L2025/03471

    摘要： An autocorrelation filter for use with a spread spectrum receiver. The autocorrelation filter can be used as a prefilter stage to reduce phase distortion present in a spread spectrum signal. The autocorrelation filter can be used to process the output from a lattice filter. The lattice filter is configured to remove magnitude distortion from the spread spectrum signal. The autocorrelation filter performs a series of correlations on the output of the lattice filter. The results of these correlations are integrated over a period of time to generate a running impulse response for characterizing and removing the phase distortion in the spread spectrum signal.

    摘要翻译： 一种与扩频接收机一起使用的自相关滤波器。 自相关滤波器可以用作预滤波器级，以减少扩频信号中存在的相位失真。 自相关滤波器可用于处理格子滤波器的输出。 格子滤波器被配置为从扩频信号中去除幅度失真。 自相关滤波器对晶格滤波器的输出执行一系列相关。 这些相关性的结果在一段时间内被积分，以产生用于表征和去除扩频信号中的相位失真的运行脉冲响应。

    Transmitting Apparatus for Transmitting in a Multi-Carrier System Using Multiple Antennas and Receiving Apparatus in the Same System
    16.
    发明申请
    Transmitting Apparatus for Transmitting in a Multi-Carrier System Using Multiple Antennas and Receiving Apparatus in the Same System 有权
    用于在同一系统中使用多个天线和接收装置在多载波系统中发射的发射装置

    公开(公告)号：US20080298225A1

    公开(公告)日：2008-12-04

    申请号：US12096520

    申请日：2006-12-04

    申请人： Jong-Ee Oh ,  Dong-Seung Kwon

    发明人： Jong-Ee Oh ,  Dong-Seung Kwon

    IPC分类号： H04J11/00

    CPC分类号： H04L1/0668 ,  H04L1/0625 ,  H04L1/0631 ,  H04L25/067 ,  H04L27/2647 ,  H04L2025/03458

    摘要： A transmitting apparatus and receiving apparatus of a multi-carrier system using multiple antennas is proposed. An LCF encoder of the transmitting apparatus performs a liner precoding to input signals to be transmitted to a receiving apparatus using a liner complex matrix considering the number of multiple antennas and the number of subcarriers, and a subcarrier allocator respectively allocates a subcarrier to the signals liner-precoded by the LCF encoder. A transmitter respectively transmits the signals having a subcarrier allocated by the subcarrier allocator through the multiple antennas externally. A subcarrier de-allocator of a receiving apparatus extracts a liner-precoded signal by de-allocating a subcarrier allocated to the received signal. An LCF decoder outputs a bit reliability of the received signal to the liner-precoded signal extracted from the subcarrier de-allocator considering the number m of multiple antennas and the number n of subcarriers. A performance may be improved by using space diversity due to multiple antennas and a frequency diversity due to the OFDMA system, and a complexity may be reduced and a hard decision value of a performance similar to the maximum likelihood detection may be obtained by using a lattice reduction and a 2-branch Chase decoder.

    摘要翻译： 提出了使用多个天线的多载波系统的发送装置和接收装置。 发送装置的LCF编码器利用考虑了多个天线的数量和子载波的数量的线性复数矩阵来执行线性预编码以输入要发送到接收装置的信号，并且子载波分配器分别将子载波分配给信号线路 由LCF编码器重新编码。 发射机分别通过外部的多个天线发送具有由子载波分配器分配的子载波的信号。 接收装置的副载波去分配器通过对分配给接收信号的子载波进行去分配来提取线路预编码信号。 考虑到多个天线的数量m和子载波的数量n，LCF解码器输出从子载波去分配器提取的线路预编码信号的接收信号的位可靠性。 可以通过使用由于多个天线的空间分集和由于OFDMA系统引起的频率分集来提高性能，并且可以减少复杂度，并且可以通过使用格子获得与最大似然检测类似的性能的硬判决值 还原和2分支Chase解码器。

    Method and system for temporal autocorrelation filtering
    17.
    发明授权
    Method and system for temporal autocorrelation filtering 有权
    时间自相关滤波方法与系统

    公开(公告)号：US07352833B2

    公开(公告)日：2008-04-01

    申请号：US10299285

    申请日：2002-11-18

    申请人： Carroll Philip Gossett ,  Michial Allen Gunter

    发明人： Carroll Philip Gossett ,  Michial Allen Gunter

    IPC分类号： H04B1/10

    CPC分类号： H04B1/707 ,  H04L25/03038 ,  H04L2025/03458 ,  H04L2025/03471

    摘要： An autocorrelation filter for use with a spread spectrum receiver. The autocorrelation filter can be used as a prefilter stage to reduce phase distortion present in a spread spectrum signal. The autocorrelation filter can be used to process the output from a lattice filter. The lattice filter is configured to remove magnitude distortion from the spread spectrum signal. The autocorrelation filter performs a series of correlations on the output of the lattice filter. The results of these correlations are integrated over a period of time to generate a running impulse response for characterizing and removing the phase distortion in the spread spectrum signal.

    摘要翻译： 一种与扩频接收机一起使用的自相关滤波器。 自相关滤波器可以用作预滤波器级，以减少扩频信号中存在的相位失真。 自相关滤波器可用于处理格子滤波器的输出。 格子滤波器被配置为从扩频信号中去除幅度失真。 自相关滤波器对晶格滤波器的输出执行一系列相关。 这些相关性的结果在一段时间内被积分，以产生用于表征和去除扩频信号中的相位失真的运行脉冲响应。

    Method and system for temporal autocorrelation filtering
    19.
    发明申请
    Method and system for temporal autocorrelation filtering 有权
    时间自相关滤波方法与系统

    公开(公告)号：US20040095990A1

    公开(公告)日：2004-05-20

    申请号：US10299285

    申请日：2002-11-18

    发明人： Carroll Philip Gossett ,  Michial Allen Gunter

    IPC分类号： H04B001/707

    CPC分类号： H04B1/707 ,  H04L25/03038 ,  H04L2025/03458 ,  H04L2025/03471

    摘要： An autocorrelation filter for use with a spread spectrum receiver. The autocorrelation filter can be used as a prefilter stage to reduce phase distortion present in a spread spectrum signal. The autocorrelation filter can be used to process the output from a lattice filter. The lattice filter is configured to remove magnitude distortion from the spread spectrum signal. The autocorrelation filter performs a series of correlations on the output of the lattice filter. The results of these correlations are integrated over a period of time to generate a running impulse response for characterizing and removing the phase distortion in the spread spectrum signal.

    摘要翻译： 一种与扩频接收机一起使用的自相关滤波器。 自相关滤波器可以用作预滤波器级，以减少扩频信号中存在的相位失真。 自相关滤波器可用于处理格子滤波器的输出。 格子滤波器被配置为从扩频信号中去除幅度失真。 自相关滤波器对晶格滤波器的输出执行一系列相关。 这些相关性的结果在一段时间内被积分，以产生用于表征和去除扩频信号中的相位失真的运行脉冲响应。