互调失真

应用Volterra级数分析AlGaAs/GaAsHBT的三阶互调失真

Analysis of an AlGaAs / GaAs HBT 's Third-order Intermodulation Distortion Using Volterra Series

由于CDMA、OFDM信号等由数百个、数千个载波信号组成，它们的信号具有非恒定的包络，放大器产生互调失真。

Because CDMA , OFDM signal is made up of the hundreds and thousands signals , the signal has nonconstant envelope , the amplifier results in intermodulation distortion products .

基于MATLAB的RF功率放大器互调失真仿真分析

MATLAB Simulating Analysis on IMD of RF Power Amplifiers

并给出了它们各自三阶互调失真的表达式，最后又对AGC放大器和乘法器进行了分析和比较。

It also analyzes and compare the theory of AGC Amplifier and Multiplier .

参量扬声器DSB法的互调失真研究

Sound distortion of DSB method for parametric loudspeaker

采用Volterra级数法，分析了包含三种主要非线性源的SIT微波功放的互调失真和增益压缩特性。

Adopting Volterra-series , we analyzed the intermodulation distortion and gain compression behaviors of a SIT microwave power amplifier , in which three main nonlinear sources are included .

指出引起SIT互调失真和增益压缩的主要原因是跨导Gm的非线性，其次是栅源电容C（gs）的非线性变化和漏电导Gd的非线性变化的作用。

It is pointed out that the intermodulation distortion and gain compression of SIT are mainly caused by the nonlinearity of transconductance G_m , then by those of gate-source capacitance C_ ( gs ) and drain conductance G_d in order .

的优势，一流的素A2，AB2型，或B2是完全没有“阻断失真”，或瞬态互调失真。

The advantage of class A2 , AB2 , or B2 is the complete lack of " blocking distortion ", or transient intermodulation distortion .

描述音频功率放大器的瞬变互调失真（TIM）总是在时间域中方便，但要消除TIM，在时间域对放大器中的那些环节进行设计就出现困难。

TIM of audio power amplifier is always described by time domain in the past , but it is difficult when the related tache of amplifier in the time domain is designed to remove TIM .

在SPEC-4实际上有较低的总谐波失真低于其更昂贵的兄弟互调失真。

The SPEC-4 actually had lower total harmonic distortion and lower intermodulation distortion than its more expensive brother .

该文提出了一种由调谐电感和PMOS管构成的3阶互调失真吸收单元来提高线性度。

A third-order intermodulation distortion ( IMD3 ) sinker composed of a PMOS FET and a tuned inductor is proposed for linearization of CMOS cascode LNA in this paper .

从仿真结果可以总结出，当系统采用双音信号作为输入时，功率放大器输出的三阶互调失真可以平均减少10dB。最后，将二极管偏压控制预失真器应用于OFDM系统中。

From simulation results , the third-order inter-modulation distortion ratio ( IMD3 ) can be reduced by-10 dB on average when a two-tone signal is input . Finally , the bias-controlled predistorter has been used in OFDM system .

对功率放大器来讲，AM-AM、AM-PM特性带来的失真会造成互调失真，从而使得相邻信道受到一定程度的干扰。

The AM-AM and the AM-PM bring distortion , which will cause intermodulation distortion . So that the adjacent channel will has a certain degree of interference .

在这个突峰值近似地等于这个闭环增益中频段的数值的情况下，找到了计算负反馈深度最佳值，即无瞬态互调失真（TIM失真）的最大值的方法。

Under this condition that the peak value is nearly equal to the value of the mid-frequency range of the closed-loop gain , a method of calculation for the optimum value of the negative feedback depth ( that is the maximum value at no TIM distortion ) is found out .

采用速率方程与Volterra变换方法，分析了垂直腔面发射激光器在微波模拟调制情况下，频率、自发辐射因子以及自发辐射寿命对三阶谐波和三阶互调失真的影响。

The nonlinear effect of vertical cavity surface emitting lasers ( VCSELs ) is analyzed using the Volterra transfer function in analog modulation . The effects of the modulation frequency , spontaneous emission factor , and spontaneous emission lifetime on the third harmonic and third-order intermodulation distortions are investigated .

消除音频功率放大器瞬变互调失真的设计准则

Design Rule for Eliminating Transient Intermodulation Distortion of Audio Power Amplifier

射频放大器互调失真检测和载波抵消的研究

Investigation on RF power amplifier IMD detection and carrier cancellation

电视发射机的互调失真及其自动校正

Intermodulation Distortion and Its Automatic Correction of Television Transmitter

互调失真是影响电视发射机性能的一个重要因素。

Intermodulation distortion is an important factor affecting the property of television transmitter .

电视信号通过带限调频信道后的互调失真

Intermodulation Distortion of TV Signal in Band-Limited FM Channels

通信系统中无源互调失真的测量

Measurement of Passive Intermodulation Distortion in Communication System

微波功率放大器互调失真与数字基带预失真线性化技术

IMD Distortion for Microwave Power Amplifiers and Digital Base - band Predistortion Linearization Technology

微腔效应对垂直腔面发射激光器谐波和互调失真的影响

Effects of a Microcavity on Harmonic and Intermodulation Distortions of a Vertical Cavity Surface Emitting Laser

而互调失真表征技术和包络域表征技术是其中非常重要的概念。

The intermodulation distortion and envelope domain characterization technology are very important concepts of LSNA technology .

探讨如何进行射频载波抵消以及检测放大器互调失真信号。

How to cancel carrier and detect the intermodulation distortion signal of power amplifier will be discussed .

最后，给出了设计和制造天线模块过程中控制互调失真的某些经验。

Some experiences with controlling third and fifth order intermodulation distortions within antenna modules are given in the end .

但是非线性产生的失真，如谐波失真、互调失真等将会严重影响系统的整体性能。

However , the distortion resulting from nonlinearity , such as harmonic distortion and inter-modulation distortion , will affect the performance of the entire system .

在此模型中考虑了二阶泰勒级数系数对三阶互调失真及交叉项对整个互调失真的影响。

Both the indirect contributions of the second-order Taylor series coefficients to the third-order intermodulation products and the contributions of the cross-terms to overall intermodulation products are included .

合放式电视发射机中，放大器非线性特性的存在，使得共同放大的图像载波、彩色副载波及伴音载波分量相互作用，产生这三个频率的合、差频失真，即互调失真。

In internally diplexed television transmitter , the nonlinear characteristic of amplifiers results in intermodulation distortion of three frequencies picture carrier frequency , color subcarrier frequency and aural carrier frequency .

采用高功率射频信号内部互调失真的包络特性检测与比较技术，对射频功率带外信号进行检测和估计。

This paper describes a new high power RF amplifier 's IMD signal envelope detection method and compare technology , which is used to detect and estimate the RF spectral regrowth .