行波放大器t WA ？
Gyrotron traveling wave amplifier is a very important high power millimeter wave source for radar applications.
回旋行波管放大器是高功率毫米波雷达发射系统最重要的候选者。
High efficiency and high linearity space traveling wave tube (TWT) is required for satellite communication system as a high power, high gain microwave amplifier.
作为卫星通讯系统所用的高增益、高功率微波放大器件，行波管的效率和线性是非常重要的。
A novel scheme for polarization insensitive optical wavelength conversion based on four wave mixing (FWM) in semiconductor optical amplifier (SOA) is proposed and demonstrated.
提出和论述了一种新颖的偏振不敏感的基于半导体光放大器的四波混频光波长转换方法。
Based on look-up table (LUT) and indirect learning architecture, a baseband predistorter was proposed for travel wave tube amplifier (TWTA).
提出了一种基于查询表和非直接学习结构的适用于行波管放大器(TWTA)的基带预失真器。
The CMOS amplifier of chopped wave stable zero calculator has been used as a key element to acquire signal of location.
本仪器采用CMOS斩波稳零运算放大器为关键性元件，获得对信号无失真采集。
The output of high-power amplifier circuit is prone to induce sharpen wave distortion.
大功率功放电路的输出很容易产生削波失真。
It was found that the square wave high-voltage amplifier has the shortcomings of high power consumption and strong harmonic disturbance in displacement measurement.
但在应用中发现，方波高压放大器存在功耗高和对位移测量电路干扰大的缺点。
The polarization characteristics of Travelling-wave semiconductor optical amplifier (TW-SOA) is investigated based on th gain property of active Fabry-Perot resonator.
以有源法布里-珀罗谐振腔的增益特性为基础，研究了行波半导体光放大器的偏振特性。
A new method of monitoring the in-situ extremely low residual reflectivity of antireflection (AR) coating of travelling-wave semiconductor laser amplifier (TW-SLA) is presented.
介绍一种实时监控行波半导体激光放大器(TW - SLA)抗反膜(AR)超低剩余反射率的新方法。
This paper, in accordance with the concept of the transmission line traveling wave matching and the theory of the distributed amplifier, describes a new concept amplifier which is cascadable.
主要讨论了据此概念而导出的一种新概念放大器，这种放大器的性能远优于普通分市式放大器。
Theory analysis and experiments prove that such tri-state power amplifier has a series of advantages such as: little current wave, slight electromagnetic interference, high efficiency and so on.
理论分析和试验表明，该功率放大器具有电流纹波小、电磁干扰小、效率高等优点。
The paper presented the theory of sine-wave and square-wave modulated high-voltage amplifier and deduced the formula for calculating its efficiency.
介绍了基于正弦波和方波调制的高压放大器的不同工作原理，并对其出力系数进行了推导。
The experimental study for the two forms of high-voltage amplifiers shows that the efficiency of square wave modulated high-voltage amplifier increases more than 80%.
对高压放大器进行实验研究的结果表明，方波高压放大器比正弦波高压放大器出力系数增加80%以上。
A uhf sensor is designed and fabricated, which mostly consists of antenna, uhf amplifier, high pass filter, and broadband wave detector.
通过与大华无线电厂合作，研制了超高频传感器，其主要由天线、超高频放大器、高通滤波器、宽带检波器等组成。
A sealed coaxial matched load at hot or cold condition used in the measurement of low-noise FET amplifier and millimeter wave mixer is described.
本文介绍了一种密封式匹配负载，以及将它置于冷、热态作为一种噪声源在低噪声fet放大器及毫米波混频器测试中的应用。
The application of operational amplifier is very wide. It's usually applied to signal operation, signal processing and wave generation.
运算放大器的应用非常广，最常见的有信号运算方面的应用、信号处理方面的应用和产生波形方面的应用。
This dissertation is devoted to effects of relaxation times on wavelength conversion efficiency based on four-wave mixing(FWM) in semiconductor optical amplifier(SOA).
通过数值求解耦合波方程，研究了半导体光放大器弛豫时间对四波混频波长变换效率的影响。
The experimental study of the ultrashort optical pulses response and switch properties of semi-travelling-wave semiconductor laser amplifier are given in this raper.
本文对半行波半导体激光放大器的脉冲响应及开关特性进行了实验研究。
Based on the model, a code of nonlinear beam-wave interaction in the CARM amplifier has been made. We use this code to simulate the experiment achieved in Mashachusetts Institute of Technology (MIT).
基于该模型，编写了圆柱腔回旋自谐振脉塞放大器单模波束互作用计算程序，并对麻省理工学院的一个实验进行了非线性模拟。
The USM driving control system based on digital signal processor was designed. The digital wave synthesizer was used as the signal generator, and the full-bridge inverter was used in power amplifier.
设计了基于数字信号处理器的超声电机驱动控制系统，以数字波合成器作为超声信号发生器，以全桥逆变器为功放。
This modulation is converted to a square wave output signal proportional to the rotary speed by an amplifier with trigger characteristics.
通过带有触发器特征的放大器将这种调制转换为方波输出信号，该输出信号与旋转速度成正比。
From chapter three to chapter five, the three key components of the system: millimeter-wave phase locked sources, multiple frequency local source, low noise amplifier are designed and tested.
第三章至第五章分别介绍了毫米波锁相源、二倍频本振源和低噪声放大器三个系统关键的单元电路的设计过程和测试结果。
The noise figure of a microwave or millimeter-wave system basically lies on the noise of the front amplifier, so the Low Noise Amplifier (LNA) plays critical role for the receiving system.
微波、毫米波系统的噪声系数基本上取决于前级放大器的噪声系数，所以低噪声放大器是接收系统中相当重要的部件。
The effects of the square wave cycle, phase, duty cycle and the fiber coil group delay and amplifier gain bandwidth on the bias error of closed-loop FOG were analyzed by simulating and testing.
通过仿真和测试分析了调制方波的周期、相位、占空比、光纤环的群延时以及放大电路的增益带宽对陀螺输出偏置的影响。
The integrated chip SG3524 is used to generate PWM wave, and the circuit-protection chip EXB841 is used in the design of the power amplifier.
该功放采用集成PWM波产生芯片SG3524作为PWM波产生芯片，采用EXB841作为过流保护芯片。
The lie detector includes host computer, testing screen, audio and video instrument, answering button keys, answering microphone, brain wave electrodes and pre-amplifier.
测谎仪包括计算机主机，受试屏幕与音响的设备，应答按钮，应答麦克风，及脑波电极与前置放大器。
The output of the machine connect DAC0832 to carry on a DA conversion, again pass operation amplifier to put an end exportation wave-form.
在单片机的输出端口接DAC0832进行DA转换，再通过运放进行波形调整，最后输出波形接在示波器上显示。
The output of the machine connect DAC0832 to carry on a DA conversion, again pass operation amplifier to put an end exportation wave-form.
在单片机的输出端口接DAC0832进行DA转换，再通过运放进行波形调整，最后输出波形接在示波器上显示。
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