自适应数字预失真是补偿高功率放大器非线性的一种有效技术。
Adaptive digital predistortion is an effective technique which compensate nonlinear distortion introduced by the high power amplifier (HPA).
本文提出一种线性化射频多载波高功率放大器的自适应射频预失真器。
This paper presents an adaptive RF predistorter to linearize multi-carriers power amplifiers.
自适应基带预失真技术是用于补偿高功率放大器非线性失真的一种有效技术。
Adaptive baseband predistortion is an effective technique for compensating nonlinear distortion introduced by high power amplifiers.
OFDM系统的一个主要缺陷就是峰平比过高引起的高功率放大器(HPA)的非线性失真。
The OFDM system has a major disadvantage that high peak to average power ratio (PAPR) can cause nonlinear distortion in the high power amplifier (HPA).
为了满足日益苛刻，产量高，应用程序，因此建议每一个MX- 118b与专用的，高功率放大器通道供电。
For demanding, high output applications; it is recommended that each MX-118B be powered with a dedicated, high powered amplifier channel.
但是OFDM信号有高的峰值平均功率比，当它通过高功率放大器时会导致非线性失真，从而使得系统的性能下降。
But the OFDM signal has a large PAPR, which results in the significant nonlinear distortion when it passes through a HPA (high power amplifier), thereby the performances of the system descend.
为了满足日益苛刻，产量高，应用程序，因此建议每一个MX -F18 B用一个专用的，高功率放大器通道供电。
For demanding, high output applications; it is recommended that each MX-F18B be powered with a dedicated, high powered amplifier channel.
由于其具有良好的动态和线性特性，可以把此类宽带功放作为推动功率放大器使用，同后级功放一起构成宽带、高增益、高功率放大器。
They could also be served as a driver amplifier because of its good dynamic range and linearity and could be associated with another one to build up a wideband high power amplifier.
功率放大器两个基本要求：一是输出信号变化能够与输入信号的变化相一致，即：系统失真小：二是整个功率放大器的损耗低，即：系统效率高。
The requirements are: the change of output signal is consistent with input signal, namely, low distortion; and the loss of the power amplifier is low, namely, high efficiency.
为保证通信质量需要使用高线性的功率放大器，而高效率的功率放大器通常是非线性的。
The high linear power amplifier has to be used to guarantee communication quality. Unfortunately, power efficient amplifiers are typically nonlinear.
而功率放大器又具有非线性特性，因此要设计高效率又高线性度的无线发射机便成了一个相当困难的挑战。
Designing a high linearity and high power efficiency wireless transmitter is a big challenge due to the nonlinear characteristic of the power amplifier.
基于LDMOSFET的高增益、高输出功率、低功耗和良好的散热特性，分别设计了S波段45w和180w固态功率放大器。
Considering LDMOS FETs high gain, high output power, low power loss and efficient heat dissipation, a S-band, 45w and 180w solid state power amplifier is designed.
高频功率放大器的特点是输出功率大和效率高。
High power's characteristics of the enlarger is greatly to output powers and the efficiency is high.
目前国内外对磁轴承的研究多为直流式磁轴承，而直流开关功率放大器相对于交流逆变器来说其体积大、功耗大及成本高。
Because of the emphases research of magnetic bearing at home and abroad is DC active magnetic bearings (AMBs) at present, and the cost of DC power amplifiers is much higher than ac power converters.
一种高电压、高速、高脉冲重复率脉冲发生器，解决了与RF功率放大器相关联的高脉冲重复率限制。
A high voltage, high speed, and high repetition rate pulse generator solves the high pulse repetition rate limitations associated with RF power amplifiers.
一种高电压、高速、高脉冲重复率脉冲发生器，解决了与RF功率放大器相关联的高脉冲重复率限制。
A high voltage, high speed, and high repetition rate pulse generator solves the high pulse repetition rate limitations associated with RF power amplifiers.
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