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1)  digital predistrotion
数字预失真(DPD)
2)  digital predistortion
数字预失真
1.
Based on the narrow communication systems and disregarding memory effects,the paper describes an adaptive digital predistortion method which can restrain the noise effect caused by applications.
数字预失真技术在软件仿真方面已取得长足进步,但在硬件实现上还存在着很大的不足。
2.
The principle of adaptive digital predistortion is introduced Secondly,the memoryless and memory models of power amplifier and two practical methods of predistortion which are look-up table based method and polynomial based method are introduced.
首先,介绍功率放大器的非线性特性、记忆效应产生原理和常见的各种线性化技术,重点研究了目前流行的自适应数字预失真技术原理。
3.
Because the high power amplifier of the base station is commonnly operated with digital predistortion (DPD), we introduce the principle and structure of DPD and research the operation of them.
由于现在大功率的基站功放一般都会与数字预失真(DPD)配合。
3)  DPD
数字预失真
1.
So, digital pre-distortion technology (DPD) has also become a hot research topic.
另外,随着现代通信系统中的发射机对功率放大器线性度要求越来越高,数字预失真技术(DPD)也成为了热门的研究话题。
2.
Two kinds of typical DPD(Digital Pre-Distortion) methods are presented in the paper,which are Polynomial Estimation and LUT(look up table).
对数字预失真线性功放中两种主要的数字预失真方法:多项式拟合法和查找表构建预失真器法进行研究;首先针对两种方法所对应的不同预失真器结构,就预失真精度、算法复杂性、所需存储空间和自适应能力等进行分析对比;然后采用cdm a2000调制信号源对两种方法预失真效果作ADS仿真分析和实验测试,验证了两种方法的可行性,并对两种方法预失真能力作进一步讨论;最后总结了两种预失真方法在功放线性化应用的优缺点和适用范围。
4)  digital predistortion(DPD)
数字预失真
1.
This paper introduces some structures and algorithms of Digital Predistortion(DPD) at first.
本文首先介绍了数字预失真器的几种模型结构和识别算法,它们虽然能够很好地实现功率放大器的线性化,却存在运算量较大的问题。
5)  digital baseband predistortion
数字基带预失真
1.
In order to cancel nonlinear distortion of power amplifier (PA) and meet the requirement of power spectral density mask specified by regulatory bodies, an adaptive digital baseband predistortion technique have been applied because of many advantages such as good linearity, wide bandwidth, high efficiency and full adaptation and become first choice of canceling distortion of nonlinear PA.
为了消除功放非线性带来的失真,满足制定的功率谱密度要求,自适应数字基带预失真技术以其良好的线性度、宽带宽、高效率和全自适应性等优点而成为消除功放失真的首选。
6)  RF DPD
射频数字预失真
补充资料:设备安装前的准备工作——设备的预装配与预调整
设备安装前的准备工作——设备的预装配与预调整
 
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