-
公开(公告)号：US20100311361A1
公开(公告)日：2010-12-09
申请号：US12858998
申请日：2010-08-18
IPC分类号： H04B1/04
CPC分类号： H04L25/03828 , H03F1/3258 , H04L25/03063 , H04L25/03343
摘要： A linearizer for a non-linear transmitter includes a tap delay line that provides samples of an input signal at selected times. At least one Volterra tap is coupled to the tape delay line. The Volterra tap includes a lookup table representation of a polynomial. An adaptive controller is coupled to the Volterra tap for modifying values in the lookup table.
摘要翻译： 用于非线性发射机的线性化器包括抽头延迟线，其在选定的时间提供输入信号的采样。 至少一个Volterra抽头与磁带延迟线耦合。 Volterra tap包括多项式的查找表表示。 自适应控制器耦合到沃尔特拉抽头，用于修改查找表中的值。
-
公开(公告)号：US07796960B1
公开(公告)日：2010-09-14
申请号：US11689374
申请日：2007-03-21
CPC分类号： H04L25/03828 , H03F1/3258 , H04L25/03063 , H04L25/03343
摘要： A linearizer for a non-linear transmitter includes a tap delay line that provides samples of an input signal at selected times. At least one Volterra tap is coupled to the tape delay line. The Volterra tap includes a lookup table representation of a polynomial. An adaptive controller is coupled to the Volterra tap for modifying values in the lookup table.
摘要翻译： 用于非线性发射机的线性化器包括抽头延迟线，其在选定的时间提供输入信号的采样。 至少一个Volterra抽头与磁带延迟线耦合。 Volterra tap包括多项式的查找表表示。 自适应控制器耦合到沃尔特拉抽头，用于修改查找表中的值。
-
公开(公告)号：US08886341B1
公开(公告)日：2014-11-11
申请号：US11693512
申请日：2007-03-29
IPC分类号： G05B13/02
CPC分类号： G05B13/04 , G06N99/005
摘要： A device and method to adapt a model in a underdetermined adaptive system that provides an output in response to an input. A controller provides parameters to the model in a transceiver system, composed of linearizers, equalizers, or estimators as a function of an error signal. The controller and the model parameters are manipulated to allow agnosticism with respect to input signals or model complexity, enabling robust operation and efficient implementation.
摘要翻译： 一种适应未知自适应系统中的模型的装置和方法，其提供响应于输入的输出。 控制器为收发机系统中的模型提供参数，该收发器系统由作为误差信号的函数的线性化器，均衡器或估计器组成。 控制器和模型参数被操纵以允许与输入信号或模型复杂性相关的不可知性，从而实现强大的操作和高效的实现。
-
公开(公告)号：US08306488B2
公开(公告)日：2012-11-06
申请号：US12858998
申请日：2010-08-18
CPC分类号： H04L25/03828 , H03F1/3258 , H04L25/03063 , H04L25/03343
摘要： A linearizer for a non-linear transmitter includes a tap delay line that provides samples of an input signal at selected times. At least one Volterra tap is coupled to the tape delay line. The Volterra tap includes a lookup table representation of a polynomial. An adaptive controller is coupled to the Volterra tap for modifying values in the lookup table.
摘要翻译： 用于非线性发射机的线性化器包括抽头延迟线，其在选定的时间提供输入信号的采样。 至少一个Volterra抽头与磁带延迟线耦合。 Volterra tap包括多项式的查找表表示。 自适应控制器耦合到沃尔特拉抽头，用于修改查找表中的值。
-
公开(公告)号：US07602244B1
公开(公告)日：2009-10-13
申请号：US11945624
申请日：2007-11-27
IPC分类号： H03F1/26
CPC分类号： H03F3/24 , H03F1/0266 , H03F1/0272 , H03F1/3247 , H04L27/367
摘要： A power amplifier system includes a nonlinear power amplifier that receives a predistorted input signal. A receiver receives an output signal from the power amplifier and provides an observed signal. A bias controller provides a delayed dynamic bias signal to the power amplifier wherein the bias signal delay is dynamic and is a function of the observed signal for synchronizing the predistorted input signal with the dynamic bias signal. A method is also described that alternately adjusts predistortion delays and bias signal delays as a function of observed signals.
摘要翻译： 功率放大器系统包括接收预失真输入信号的非线性功率放大器。 接收机接收来自功率放大器的输出信号并提供观测信号。 偏置控制器向功率放大器提供延迟的动态偏置信号，其中偏置信号延迟是动态的，并且是用于使预失真输入信号与动态偏置信号同步的观测信号的函数。 还描述了作为观察信号的函数交替地调整预失真延迟和偏置信号延迟的方法。
-
公开(公告)号：US08995502B1
公开(公告)日：2015-03-31
申请号：US11688742
申请日：2007-03-20
申请人： Stephen Lai , Peter Zahariev Rashev
发明人： Stephen Lai , Peter Zahariev Rashev
CPC分类号： H04L25/00
摘要： A transceiver for a cellular telephone network includes a transmitter and a receiver that receives transmitted signals, as well as a receiver. A spectral analyzer analyzes the received signals and a controller coupled to the spectral analyzer controls the transmitter and receiver as a function of the spectral analyzer analysis.
摘要翻译： 用于蜂窝电话网络的收发机包括发射机和接收发射信号的接收机以及接收机。 光谱分析仪分析所接收的信号，并且耦合到光谱分析仪的控制器根据光谱分析仪分析仪控制发射器和接收器。
-
7.发明授权Adaptive multi-channel transmitter linearization system using a shared feedback receiver 有权使用共享反馈接收机的自适应多信道发射机线性化系统公开(公告)号：US08837620B2
公开(公告)日：2014-09-16
申请号：US13099518
申请日：2011-05-03
申请人： Tan Ho , Kris Bailey , Peter Zahariev Rashev
发明人： Tan Ho , Kris Bailey , Peter Zahariev Rashev
CPC分类号： H04L27/368 , H03F1/3223 , H03F1/3247 , H03F3/24 , H04B1/0475 , H04B2001/0441 , H04L25/03343 , H04L2025/03426
摘要： Pre-distortion techniques, devices and systems for a multi-channel transmitter are described. An adaptation time is provided for each of the transmit chains in the multi-channel transmitter. During each adaptation time an output of a transmit chain is coupled to a shared feedback receiver. The shared feedback receiver generates a feedback signal that is used to vary pre-distortion for that transmit chain. A commutation controller varies at least one of: (a) an amount of the adaptation time for a transmit chain and (b) an order in which each of the transmit chains receives its adaptation time.
摘要翻译： 描述了用于多通道发射机的预失真技术，设备和系统。 为多通道发射机中的每个发射链提供适应时间。 在每个适配时间期间，发射链的输出耦合到共享的反馈接收器。 共享反馈接收器产生用于改变该发射链的预失真的反馈信号。 换向控制器至少改变以下之一：（a）发送链的自适应时间量和（b）每个发送链接收其适应时间的顺序。
-
公开(公告)号：US08705595B2
公开(公告)日：2014-04-22
申请号：US13102304
申请日：2011-05-06
IPC分类号： H04L27/00
CPC分类号： H03F3/24 , H03F1/3247 , H03F1/3294 , H03F2200/321 , H03F2200/336 , H03F2200/465 , H03F2200/468 , H03F2201/3233 , H04B17/13 , H04B17/14 , H04L27/368
摘要： Devices and methods related to devices capable to perform digital output power measurement besides attenuation control are provided. A device includes a digital signal processing unit, a transmitter and a feedback receiver. The digital signal processing unit is configured to control attenuation along a transmission path and a feedback path based on a comparison of a power of a digital input signal with a raw power of a corresponding digital feedback signal, and to calculate an output power value of an analog RF signal to be broadcasted, using the raw power of the digital feedback signal and one or more feedback gain factors related to gain in the feedback receiver.
摘要翻译： 提供了与衰减控制之外的能够执行数字输出功率测量的设备相关的设备和方法。 一种装置包括数字信号处理单元，发射器和反馈接收器。 数字信号处理单元被配置为基于数字输入信号的功率与相应的数字反馈信号的原始功率的比较来控制沿着传输路径和反馈路径的衰减，并且计算输出功率值 使用数字反馈信号的原始功率和与反馈接收机中的增益相关的一个或多个反馈增益因子来广播的模拟RF信号。
-
公开(公告)号：US20120064848A1
公开(公告)日：2012-03-15
申请号：US13125625
申请日：2010-09-15
CPC分类号： H04L27/2623
摘要： Peak power reduction in transmit chains of radiocommunication devices is performed using a low sample rate. Filtering and, optionally, interpolation of a signal being processed for peak power reduction can be performed only in an error signal path or in both an error signal path and a primary signal path.
摘要翻译： 无线电通信设备的发射链中的峰值功率降低使用低采样率来执行。 只能在误差信号路径中或在误差信号路径和主信号路径两者中进行正在处理的用于峰值功率降低的信号的滤波和可选的内插。
-
公开(公告)号：US08478325B2
公开(公告)日：2013-07-02
申请号：US13125625
申请日：2010-09-15
IPC分类号： H04B7/00
CPC分类号： H04L27/2623
摘要： Peak power reduction in transmit chains of radiocommunication devices is performed using a low sample rate. Filtering and, optionally, interpolation of a signal being processed for peak power reduction can be performed only in an error signal path or in both an error signal path and a primary signal path.
摘要翻译： 无线电通信设备的发射链中的峰值功率降低使用低采样率进行。 只能在误差信号路径中或在误差信号路径和主信号路径两者中进行正在处理的用于峰值功率降低的信号的滤波和可选的内插。
-
-
-
-
-
-
-
-
-
搜索结果
17 条记录 (耗时 0.015 秒)
