The method is based on AM-AM?AM-PM characteristics of a nonlinear power amplifier and application of band -pass nonlinearity theory and digital signal processing techniques.
根据功放的实测AM-AM、AM-PM特性，采用时域分析方法，并应用带通非线性理论和数字信号处理技术，分析了宽带数字调制信号激励下的射频功率放大器非线性失真特性。
Adaptive digital predistortion is an effective technique which compensate nonlinear distortion introduced by the high power amplifier (HPA).
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。
Linearizeation technology is now widely used in order to reduce the power amplifier nonlinear distortion without loss of efficiency.
为了在不损失效率的条件下降低功率放大器的非线性失真现在广泛采用了线性化技术。
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).
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。
Semiconductor optical amplifier (SOA) is very fit for all optical modulation format conversion due to its high nonlinear characteristics, lower switch power and small size.
半导体光放大器(SOA)由于具有高非线性特性、低开关功率和尺寸较小等优点，非常适合用来实现全光码型转换。
A new evaluation approach for the in-band nonlinear distortion, which is formed by the orthogonal frequency division multiplex (OFDM) signal passing through the high power amplifier, is presented.
提出了研究正交频分复用(OFDM)信号通过高功率放大器产生的带内非线性畸变的一种新方法。
The paper presents an efficient digital adaptive method compensating for nonlinear distortions caused by a high-power amplifier (HPA) in orthogonal frequency division multiplexing(OFDM) system.
本文提出了一种用于正交频分复用（OFDM）系统中由大功率放大器引起的非线性失真的有效的数字自适应补偿方法。
The high linear power amplifier has to be used to guarantee communication quality. Unfortunately, power efficient amplifiers are typically nonlinear.
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。
Designing a high linearity and high power efficiency wireless transmitter is a big challenge due to the nonlinear characteristic of the power amplifier.
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。
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.
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。
Different control laws of AMB (Active Magnetic Bearing) based on rotor dynamics and AMB control model are discussed, considering the power-amplifier delay, rotor unbalance and AMB nonlinear factors.
以刚体动力学为基础，考虑功放延时、转子不平衡、磁轴承非线性等因素，建立了磁轴承反馈控制控制系统模型，对不同的控制律进行了仿真分析。
In order to analyze the nonlinear characteristic presented in the subharmonic load pull experiment theoretically, a class a MESFET power amplifier is researched on in this paper.
为了从理论上解释副谐波负载牵引实验中的各种非线性现象，对一个A类MESFET功放进行了研究。
Firstly, the nonlinear characteristic of RF power amplifier is studied in the article and the improvement project is proposed.
本文首先研究了功率放大器的非线性失真问题，提出了预失真处理的改善方案。
Firstly, the nonlinear characteristic of RF power amplifier is studied in the article and the improvement project is proposed.
本文首先研究了功率放大器的非线性失真问题，提出了预失真处理的改善方案。
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