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：US09595982B2

公开(公告)日：2017-03-14

申请号：US14891257

申请日：2014-05-20

Applicant: ANALOG DEVICES, INC.

Inventor： Theophane Weber ,  Martin Steven McCormick ,  Qingdong Meng

IPC: H04B1/04 ,  H03F1/32 ,  H03M1/00 ,  H03M1/12 ,  H04L25/03

CPC classification number: H04B1/0475 ,  H03F1/3247 ,  H03M1/002 ,  H03M1/1245 ,  H04L25/03019

Abstract: An approach to linearization relaxes the requirements on the digitization of the analog output signal while maintaining the benefits of a high sampling rate of the output signal. The digitization approach extracts sufficient information to characterize the output signal over a wide bandwidth without necessarily determining sufficient information to fully represent the output signal, for example, without sampling the output signal at the Nyquist sampling rate with a sufficient precision to accurately represent the signal.

Abstract translation: 线性化的方法放松了对模拟输出信号数字化的要求，同时保持了输出信号的高采样率的好处。 数字化方法提取足够的信息以在宽带宽上表征输出信号，而不必确定足够的信息以完全表示输出信号，例如，不以具有足够精度的奈奎斯特采样率对输出信号进行采样以精确地表示信号。