公开(公告)号：US07756492B2

公开(公告)日：2010-07-13

申请号：US11814636

申请日：2005-01-25

申请人： Xiaowei Liu ,  Hongtao Ru

发明人： Xiaowei Liu ,  Hongtao Ru

IPC分类号： H04B1/04

CPC分类号： H03F1/3241 ,  H03F2201/3221 ,  H03F2201/3224 ,  H04L27/366

摘要： The present invention discloses a predistortion method based on vector envelope injection. The method includes the following steps: radio frequency input signals are divided into two signal streams; one input signal stream generates two envelope injection signals whose amplitudes can be adjusted independently; the other signal stream is divided into further two radio frequency signal streams; the two radio frequency signal streams are amplified with the same amplitude; frequency mixing is performed for the two envelope injection signals and two radio frequency signal streams respectively to obtain two compensation signals; the amplified radio frequency signal and compensation signals are power synthesized in the same way, so as to obtain two compensation signals and amplified radio frequency signals of different directions. This present invention also provides a corresponding predistortion device.

摘要翻译： 本发明公开了一种基于向量包络注入的预失真方法。 该方法包括以下步骤：射频输入信号分为两个信号流; 一个输入信号流产生两个包络注入信号，其幅度可以独立调整; 另一个信号流被分成另外两个射频信号流; 两个射频信号流以相同的幅度被放大; 针对两个包络注入信号和两个射频信号流分别进行混频以获得两个补偿信号; 放大的射频信号和补偿信号以相同的方式进行功率合成，从而获得两个不同方向的补偿信号和放大的射频信号。 本发明还提供了一种相应的预失真装置。

公开(公告)号：US20100007415A1

公开(公告)日：2010-01-14

申请号：US11721709

申请日：2004-12-21

申请人： Hongtao Ru

发明人： Hongtao Ru

IPC分类号： H03F1/26

CPC分类号： H04W52/14 ,  H03F1/34 ,  H03F3/24 ,  H03F2200/195 ,  H03F2200/207 ,  H04B17/13 ,  H04B2001/0433 ,  H04W52/143 ,  H04W52/146

摘要： The present invention relates to a method for detecting signal nonlinear distortion magnitude, used for extracting and detecting the nonlinear distortion output by a radio frequency power amplifier, characterized in respectively extracting input signal and output signal, and performing square after matching the amplitudes and frequencies of the input signal and output signal respectively, obtaining respective low frequency components of the squared input signal and output signal, therefore, the carrier component of the signals can be filtered, and the low frequency components can characterize the distorted signal feature as well as facilitate handling. The present invention performs square after matching the input signal and output signal, extracts the low frequency component, and then the relativity with the frequency and bandwidth of the signal is low, therefore, the difficulty in detecting the distortion can be reduced greatly. In addition, the square is equivalent to amplify the distortion, which is favorable to improve the detection sensitivity of output distortion.

摘要翻译： 本发明涉及一种用于检测信号非线性失真幅度的方法，用于提取和检测由射频功率放大器输出的非线性失真，其特征在于分别提取输入信号和输出信号，并在匹配幅度和频率之后进行平方 输入信号和输出信号，获得平方输入信号和输出信号的各自的低频分量，因此信号的载波分量可以被滤波，低频分量可以表征失真的信号特征以及便于处理 。 本发明在匹配输入信号和输出信号之后进行平方，提取低频分量，然后与信号的频率和带宽相关性低，因此可以大大降低检测失真的难度。 另外，平方相当于放大失真，有利于提高输出失真的检测灵敏度。

公开(公告)号：US07839214B2

公开(公告)日：2010-11-23

申请号：US11721709

申请日：2004-12-21

申请人： Hongtao Ru

发明人： Hongtao Ru

IPC分类号： H03F1/26

CPC分类号： H04W52/14 ,  H03F1/34 ,  H03F3/24 ,  H03F2200/195 ,  H03F2200/207 ,  H04B17/13 ,  H04B2001/0433 ,  H04W52/143 ,  H04W52/146

摘要： The present invention relates to a method for detecting signal nonlinear distortion magnitude, used for extracting and detecting the nonlinear distortion output by a radio frequency power amplifier, characterized in respectively extracting input signal and output signal, and performing square after matching the amplitudes and frequencies of the input signal and output signal respectively, obtaining respective low frequency components of the squared input signal and output signal, therefore, the carrier component of the signals can be filtered, and the low frequency components can characterize the distorted signal feature as well as facilitate handling. The present invention performs square after matching the input signal and output signal, extracts the low frequency component, and then the relativity with the frequency and bandwidth of the signal is low, therefore, the difficulty in detecting the distortion can be reduced greatly. In addition, the square is equivalent to amplify the distortion, which is favorable to improve the detection sensitivity of output distortion.

摘要翻译： 本发明涉及一种用于检测信号非线性失真幅度的方法，用于提取和检测由射频功率放大器输出的非线性失真，其特征在于分别提取输入信号和输出信号，并在匹配幅度和频率之后进行平方 输入信号和输出信号，获得平方输入信号和输出信号的各自的低频分量，因此信号的载波分量可以被滤波，低频分量可以表征失真的信号特征以及便于处理 。 本发明在匹配输入信号和输出信号之后进行平方，提取低频分量，然后与信号的频率和带宽相关性低，因此可以大大降低检测失真的难度。 另外，平方相当于放大失真，有利于提高输出失真的检测灵敏度。

公开(公告)号：US20080164943A1

公开(公告)日：2008-07-10

申请号：US11814636

申请日：2005-01-25

申请人： Xiaowei Liu ,  Hongtao Ru

发明人： Xiaowei Liu ,  Hongtao Ru

IPC分类号： H03F1/26

CPC分类号： H03F1/3241 ,  H03F2201/3221 ,  H03F2201/3224 ,  H04L27/366

摘要： The present invention discloses a predistortion method based on vector envelope injection. Said method includes the following steps: radio frequency input signals are divided into two signal streams; one input signal stream generates two envelope injection signals whose amplitudes can be adjusted independently; the other signal stream is divided into further two radio frequency signal streams; said two radio frequency signal streams are amplified with the same amplitude; frequency mixing is performed for said two envelope injection signals and two radio frequency signal streams respectively to obtain two compensation signals; the amplified radio frequency signal and compensation signals are power synthesized in the same way, so as to obtain two compensation signals and amplified radio frequency signals of different directions. This present invention also provides a corresponding predistortion device. With the predistortion method and device of present invention, the compensation of inter-modulated distortion component in arbitrary angle will be realized; since the inter-modulated distortion compensation is achieved by injecting low frequency envelope injection signals, the predistortion circuit is simplified and the cost is reduced significantly.

摘要翻译： 本发明公开了一种基于向量包络注入的预失真方法。 所述方法包括以下步骤：射频输入信号被分成两个信号流; 一个输入信号流产生两个包络注入信号，其幅度可以独立调整; 另一个信号流被分成另外两个射频信号流; 所述两个射频信号流以相同的幅度被放大; 对所述两个包络注入信号和两个射频信号流分别进行混频以获得两个补偿信号; 放大的射频信号和补偿信号以相同的方式进行功率合成，从而获得两个不同方向的补偿信号和放大的射频信号。 本发明还提供了一种相应的预失真装置。 利用本发明的预失真方法和装置，可以实现任意角度的互调失真分量的补偿; 由于通过注入低频包络注入信号来实现互调失真补偿，所以预失真电路被简化并且成本显着降低。