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1.发明授权Weighted memory polynomial method and system for power amplifiers predistortion 有权用于功率放大器预失真的加权存储多项式方法和系统公开(公告)号：US09461597B2
公开(公告)日：2016-10-04
申请号：US14533486
申请日：2014-11-05
Inventor： Abdalla Ebrahim Abdelrahman , Oualid Hammi , Azzedine Zerguine
CPC classification number: H03F1/3247 , H03F1/0205 , H03F1/3241 , H03F1/3258 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/451 , H03F2201/3224 , H03F2201/3231 , H04B1/0475 , H04B2001/0425
Abstract: A system and method for linearizing a power amplifier using digital predistortion technique is provided including processing circuitry, the processing circuitry configured to apply a digital predistortion function based on a weighted static polynomial function, a weighted dynamic polynomial function and a threshold parameter which splits the nonlinear transfer characteristics of the device under test into a region where the static nonlinearity predominates and a region where the dynamic distortions predominate.
Abstract translation: 提供了一种使用数字预失真技术线性化功率放大器的系统和方法，包括处理电路，所述处理电路被配置为基于加权静态多项式函数应用数字预失真函数，加权动态多项式函数和阈值参数，其分割非线性 将被测器件的传输特性转化为静态非线性占优势的区域以及动态失真占优势的区域。
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2.发明申请WEIGHTED MEMORY POLYNOMIAL METHOD AND SYSTEM FOR POWER AMPLIFIERS PREDISTORTION 有权用于功率放大器预测的加权记忆多项式和系统公开(公告)号：US20160126903A1
公开(公告)日：2016-05-05
申请号：US14533486
申请日：2014-11-05
Inventor： Abdalla E. ABDELRAHMAN , Oualid HAMMI , Azzedine ZERGUINE
CPC classification number: H03F1/3247 , H03F1/0205 , H03F1/3241 , H03F1/3258 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/451 , H03F2201/3224 , H03F2201/3231 , H04B1/0475 , H04B2001/0425
Abstract: A system and method for linearizing a power amplifier using digital predistortion technique is provided including processing circuitry, the processing circuitry configured to apply a digital predistortion function based on a weighted static polynomial function, a weighted dynamic polynomial function and a threshold parameter which splits the nonlinear transfer characteristics of the device under test into a region where the static nonlinearity predominates and a region where the dynamic distortions predominate.
Abstract translation: 提供了一种使用数字预失真技术线性化功率放大器的系统和方法，包括处理电路，所述处理电路被配置为基于加权静态多项式函数应用数字预失真函数，加权动态多项式函数和阈值参数，其分割非线性 将被测器件的传输特性转化为静态非线性占优势的区域以及动态失真占优势的区域。
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公开(公告)号：US08269572B2
公开(公告)日：2012-09-18
申请号：US12919514
申请日：2009-02-26
Applicant: Per-Olof Brandt
Inventor： Per-Olof Brandt
IPC: H03C1/06
CPC classification number: H04L27/368 , H03F1/3247 , H03F1/3294 , H03F3/24 , H03F2200/336 , H03F2201/3231 , H03F2201/3233 , H04L27/362
Abstract: Signal modulation apparatus for applying a modulation signal to a carrier signal, the apparatus comprising: an amplitude modulator for modulating the amplitude of the carrier signal in accordance with a control signal; first mixing means for mixing together fractions of the carrier signal before and after action of the amplitude modulator to produce a first detection signal indicative of the amplitude modulation applied by the amplitude modulator; and detection means for comparing the control signal with a first detection signal to evaluate distortion in the first detection signal as compared with the control signal.
Abstract translation: 用于将调制信号应用于载波信号的信号调制装置，所述装置包括：幅度调制器，用于根据控制信号调制载波信号的振幅; 第一混合装置，用于将幅度调制器的作用之前和之后的载波信号的分数混合，以产生指示由幅度调制器施加的幅度调制的第一检测信号; 以及检测装置，用于将控制信号与第一检测信号进行比较，以评估与控制信号相比第一检测信号中的失真。
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4.发明授权
公开(公告)号：US5121077A
公开(公告)日：1992-06-09
申请号：US653010
申请日：1991-01-30
Applicant: Melvyn McGann
Inventor： Melvyn McGann
CPC classification number: H03F1/3282 , H03C1/06 , H03F1/3247 , H03F2201/3231
Abstract: A high frequency SSB radio transmitter has an envelope amplitude modulator for varying the envelope of an r.f. signal source based on an error signal from envelope detectors detecting the envelope of the input and output waveform. It also has a first phase modulator in a main feedback loop for varying the phase of the input waveform based on differences detected in a phase detector between the instantaneous phase of the input and output r.f. signal. To overcome the problem of spurious outputs from the phase detector resulting from the cross-over points of the SSB waveform when there are carrier breaks and other problems, a subsidiary, phase lock loop feeds a signal derived from the error signal to a second phase modulator to tend to hold the inputs to the phase detector in such a phase relationship that the output is zero. To cope with large phase shift errors between the input waveform and the output which result when the power amplifier changes frequency or temperature variations e.g. at the antenna, a broadband phase shifting network is brought into operation when a dual voltage comparator senses that the signal fed to the second modulator passes a value corresponding to its extremes of adjustment.
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5.发明授权Device for correcting the phase induced by the class C operation of the solid state amplifier and radar system using such a device 失效用于校正使用这种装置的固态放大器和雷达系统的类别C操作所引起的相位的装置
公开(公告)号：US5075635A
公开(公告)日：1991-12-24
申请号：US536632
申请日：1990-06-27
Applicant: Alain Boulanger , Jacques Creff
Inventor： Alain Boulanger , Jacques Creff
CPC classification number: H03L7/0812 , H03F1/3247 , H03F1/3282 , H03F2201/3231
Abstract: The present invention relates to a device for correcting the phase induced by the class C operation of a solid state amplifier. It is applied in the field of the manufacture of pulse radar transmitters. Solid state amplifiers are prone to generating phase variations. The invention relates to a measurement and correction loop which allows the real time elimination of phase variations due to heating up.
Abstract translation: PCT No.PCT / FR89 / 00592 Sec。 371日期：1990年6月27日 102（e）日期1990年6月27日PCT 1989年12月17日PCT PCT。 出版物WO90 / 06625 日期：1990年6月14日。本发明涉及一种用于校正由固态放大器的C类操作引起的相位的装置。 它应用于脉冲雷达发射机制造领域。 固态放大器容易产生相位变化。 本发明涉及一种测量和校正回路，其允许实时消除由于加热引起的相位变化。
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Patent Agency Ranking
公开(公告)号：US09577588B1
公开(公告)日：2017-02-21
申请号：US14849527
申请日：2015-09-09
Applicant: Hughes Network Systems, LLC
Inventor： Bassel F. Beidas
CPC classification number: H03F1/3241 , H03F1/3258 , H03F3/211 , H03F3/24 , H03F2201/3203 , H03F2201/3231 , H03F2201/3233 , H04B1/0475 , H04B2001/0408 , H04L27/368
Abstract: A single or multistage signal predistorter includes an input coupled to receive an information signal comprising input samples and an output coupled to the high power amplifier, the signal predistorter configured to receive an input sample, generate a distortion sample based on an estimate of nonlinearity of the high power amplifier at an operating saturation level, modify the input sample with a correction term to generate a predistortion signal, wherein the correction term is proportional to the distortion sample, and further wherein the predistortion signal comprises the information signal modified to account for nonlinearities in the high power amplifier.
Abstract translation: 单级或多级信号预失真器包括耦合以接收包括输入样本和耦合到高功率放大器的输出的信息信号的输入，该信号预失真器被配置为接收输入样本，基于所估计的非线性估计来产生失真样本 在功率饱和电平下的高功率放大器，用校正项修改输入采样以产生预失真信号，其中所述校正项与所述失真采样成比例，并且其中所述预失真信号包括被修改以消除非线性的信息信号 大功率放大器。
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公开(公告)号：US20150097618A1
公开(公告)日：2015-04-09
申请号：US14446569
申请日：2014-07-30
Applicant: FUJITSU LIMITED
Inventor： Alexander Nikolaevich LOZHKIN
CPC classification number: H03F1/3247 , H03F1/26 , H03F1/3241 , H03F3/24 , H03F2201/3227 , H03F2201/3231 , H03G3/3042
Abstract: A distortion compensation apparatus includes a pre-distorter, a gain control unit, and a learning unit. The pre-distorter adds distortion according to compensation coefficients to individual input signals prior to the input signals being input to a power amplifier. The gain control unit applies gain control to individual feedback signals fed back from the power amplifier according to a maximum level of the feedback signals within a time frame. The learning unit updates the compensation coefficients used by the pre-distorter, using the feedback signals subjected to the gain control by the gain control unit.
Abstract translation: 失真补偿装置包括预失真器，增益控制单元和学习单元。 在将输入信号输入到功率放大器之前，预失真器根据补偿系数向单个输入信号添加失真。 增益控制单元根据时间范围内的反馈信号的最大电平对从功率放大器反馈的各个反馈信号进行增益控制。 学习单元使用由增益控制单元进行增益控制的反馈信号来更新由预失真器使用的补偿系数。
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公开(公告)号：US20100327988A1
公开(公告)日：2010-12-30
申请号：US12919514
申请日：2009-02-26
Applicant: Per-Olof Brandt
Inventor： Per-Olof Brandt
IPC: H03C1/02
CPC classification number: H04L27/368 , H03F1/3247 , H03F1/3294 , H03F3/24 , H03F2200/336 , H03F2201/3231 , H03F2201/3233 , H04L27/362
Abstract: Signal modulation apparatus for applying a modulation signal to a carrier signal, the apparatus comprising: an amplitude modulator for modulating the amplitude of the carrier signal in accordance with a control signal; first mixing means for mixing together fractions of the carrier signal before and after action of the amplitude modulator to produce a first detection signal indicative of the amplitude modulation applied by the amplitude modulator; and detection means for comparing the control signal with a first detection signal to evaluate distortion in the first detection signal as compared with the control signal.
Abstract translation: 用于将调制信号应用于载波信号的信号调制装置，所述装置包括：幅度调制器，用于根据控制信号调制载波信号的振幅; 第一混合装置，用于将幅度调制器的作用之前和之后的载波信号的分数混合，以产生指示由幅度调制器施加的幅度调制的第一检测信号; 以及检测装置，用于将控制信号与第一检测信号进行比较，以评估与控制信号相比第一检测信号中的失真。
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公开(公告)号：US20100097151A1
公开(公告)日：2010-04-22
申请号：US12526983
申请日：2008-02-06
Applicant: Jungo Arai
Inventor： Jungo Arai
IPC: H03L7/00
CPC classification number: H04B1/0475 , H03F1/3247 , H03F3/24 , H03F2200/451 , H03F2201/3231
Abstract: A phase noise correction device having a function for accurately detecting a phase noise component and capable of reducing a load on a reception device is provided. A phase noise correction device for correcting a phase noise generated in a local oscillator includes: a division section that divides a signal generated in the local oscillator; a reference signal generation section that generates a signal of the same frequency as that of the divided signal; a phase difference detection section that detects a phase difference between the divided signal and the generated reference signal; and a phase noise correction section that gives a phase rotation to a baseband signal in the direction that cancels the phase noise according to the detected phase difference as a phase noise component.
Abstract translation: 本发明提供一种具有精度检测相位噪声成分并能够减小接收装置的负荷的功能的相位噪声校正装置。 用于校正在本地振荡器中产生的相位噪声的相位噪声校正装置包括：划分部分，其分割在本地振荡器中产生的信号; 参考信号生成部，生成与分频信号相同频率的信号; 相位差检测部，检测所述分频信号与所生成的基准信号之间的相位差; 以及相位噪声校正部，其根据所检测的相位差，将抵消相位噪声的方向的基带信号进行相位旋转，作为相位噪声分量。
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公开(公告)号：US06351677B1
公开(公告)日：2002-02-26
申请号：US09184973
申请日：1998-11-03
Applicant: Scott Allen Leyonhjelm , Mark Briffa
Inventor： Scott Allen Leyonhjelm , Mark Briffa
IPC: G06F1900
CPC classification number: H03F1/34 , H03C3/08 , H03D7/168 , H03F1/3229 , H03F1/3247 , H03F1/3282 , H03F1/3294 , H03F1/345 , H03F2200/57 , H03F2201/3231 , H04L27/368
Abstract: According to the invention, a Cartesian control means (16) comprising a phase rotator (50) and a phase adjuster (52) is provided. With a method and a device according to the invention, a system is provided that is unconditionally stable with respect to non-phase alignment, regardless of input power changes, temperature and component ageing. No certain conditions need to be placed upon the control system to ensure stability, i.e. the system is non-obtrusive and requires no off-line calibration. The inclusion of the phase rotator (50) and phase adjustment techniques into the Cartesian control system makes this possible.
Abstract translation: 根据本发明，提供了包括相位旋转器（50）和相位调节器（52）的笛卡尔控制装置（16）。 利用根据本发明的方法和装置，提供了无论输入功率变化，温度和组件老化如何，都相对于非相位对准无条件稳定的系统。 控制系统不需要放置某些条件以确保稳定性，即系统不引人注目，不需要离线校准。 将相位旋转器（50）和相位调整技术纳入笛卡尔控制系统使得这成为可能。
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