公开(公告)号：US20130166259A1

公开(公告)日：2013-06-27

申请号：US13678904

申请日：2012-11-16

Applicant: Analog Devices, Inc.

Inventor： Theophane Weber ,  Benjamin Vigoda ,  Patrick Pratt ,  Joshua Park ,  Martin McCormick

IPC: G06F17/50

CPC classification number: H03F1/3247 ,  H03F1/3258 ,  H03F1/3282 ,  H03F2201/3209 ,  H03F2201/3224

Abstract: A method for linearizing a non-linear system element includes acquiring data representing inputs and corresponding outputs of the non-linear system element. A model parameter estimation procedure is applied to the acquired data to determine model parameters of a model characterizing input-output characteristics of the non-linear element. An input signal representing a desired output signal of the non-linear element is accepted and processed to form a modified input signal according to the determined model parameters. The processing includes, for each of a series of successive samples of the input signal, applying an iterative procedure to determining a sample of the modified input signal according to a predicted output of the model of the non-linear element. The modified input signal is provided for application to the input of the non-linear element.

Abstract translation: 线性化非线性系统元件的方法包括获取表示非线性系统元件的输入和相应输出的数据。 对所获取的数据应用模型参数估计过程，以确定表征非线性元素的输入 - 输出特性的模型的模型参数。 代表非线性元件的期望输出信号的输入信号被接受并被处理以根据所确定的模型参数形成经修改的输入信号。 该处理包括对于输入信号的一系列连续样本中的每一个，根据非线性元件的模型的预测输出，应用迭代过程来确定修改的输入信号的样本。 修改的输入信号被提供用于应用于非线性元件的输入。

公开(公告)号：US11012201B2

公开(公告)日：2021-05-18

申请号：US14340461

申请日：2014-07-24

Applicant: Analog Devices, Inc.

Inventor： Raju Hormis ,  Steven R. Bal ,  Antonio Montalvo ,  David J. McLaurin ,  Martin McCormick

IPC: H04L1/24 ,  H04L27/36

Abstract: A transmission module is provided that includes a transmitter, a loopback receiver, and a QEC controller. The QEC controller identifies quadrature imbalance in the transmitter based at least one a comparison of the data signals at the output of the loopback receiver with data signals at the input of the transmitter. Based on the comparison, the QEC controller can adjust one or more characteristics of the transmitter to correct quadrature errors in the transmitter.

公开(公告)号：US20150030103A1

公开(公告)日：2015-01-29

申请号：US14340461

申请日：2014-07-24

Applicant: Analog Devices, Inc.

Inventor： Raju Hormis ,  Steven R. Bal ,  Antonio Montalvo ,  David J. McLaurin ,  Martin McCormick

IPC: H04L1/24 ,  H04L27/36

Abstract: A transmission module is provided that includes a transmitter, a loopback receiver, and a QEC controller. The QEC controller identifies quadrature imbalance in the transmitter based at least one a comparison of the data signals at the output of the loopback receiver with data signals at the input of the transmitter. Based on the comparison, the QEC controller can adjust one or more characteristics of the transmitter to correct quadrature errors in the transmitter.

Abstract translation: 提供了一种传输模块，其包括发射机，环回接收机和QEC控制器。 QEC控制器通过至少一个环回接收机输出端的数据信号与发射机输入端的数据信号进行比较，来识别发射机的正交不平衡。 基于比较，QEC控制器可以调整发射机的一个或多个特性来校正发射机的正交误差。