线型调制器,linear modulator
1)linear modulator线型调制器
1.In this paper,the design principle of a 300kWlinear modulator is introduced.介绍了一个300 kW线型调制器的设计原理。
2.This paper particularly dissertates the design process and method of a 300kWlinear modulator.本文详细论述了一个300kW线型调制器的设计过程和方法。
2)line-type modulator线型调制器
1.Employing the typicalline-type modulator, the choice and design of the main circuits parameters are analyzed in practice, and the key device—thyratronis described in detail.5MW脉冲源,它采用放大链形式,末级为速调管放大器,使用典型的线型调制器;阐述了工程应用中脉冲源各主要电路参数的计算和选择,详细说明了其中关键器件闸流管的应用;最后给出了样机的测试波形。
3)linear modulation线型调制
4)line modulator线调制器
5)linear modulator线性调制器
1.Based on the disadvantage oflinear modulator’s DC c harging technology, this paper presents the scanning-back charging technology, analyzes in detail the operation principle of the scanning-back charging techno logy inlinear modulator, introuduces the design of scanning-back charging tran sformer integrating with a high voltage and high powerlinear modulator of a cer tain radar.基于现有线性调制器直流电源充电技术的不足提出了回扫充电技术,具体分析了线性调制器回扫充电技术的工作原理,结合某雷达高压大功率线性调制器介绍了回扫充电变压器的设计。
6)wireless modem无线调制解调器
1.With groupedwireless modem, high frequency wireless digital communication was realized between the control systems of tank farm and light ends output station of Marketing Company in Tuha oilfield.通过集群无线调制解调器的成功应用,吐哈油田销售公司油库和轻烃外运站的控制系统实现了高频无线数据通讯,使销售公司中心调度可在油库中控室同时监测油库和轻烃外运站两站的生产情况,实现并保证了多套系统连接后功能、操作完全一致。
2.Using the short\|wave transmitter\|receiver andwireless modem, we have realized the wireless transmission of the E\|mail.为了便于无线终端特别是军用无线终端发送和接收电子邮件 ,利用现有的短波电台和无线调制解调器实现了电子邮件无线转发功能。
英文短句/例句
1.The Concept of Designing the Wireless Modem Basedon High-speed Internet;基于高速因特网无线调制解调器设计的构思
2.Integrated modem- connect the handset directly to a laptop to act as a tethered modem for wireless connectivity.集成调制解调器-手机直接连接到一个笔记本作为无线调制解调器连通栓.
3.The phone itself can be used as a wireless modem for your laptop or pc.电话本身可以作为一个无线调制解调器或笔记本电脑你.
4.The Study on Implementation of DSP Software Algorithm of Wireless MODEM Based on OFDM;基于OFDM技术的无线调制解调器的DSP算法实现研究
5.Design of Radio Channel 1200/2400bit/s MODEM无线信道1200/2400调制解调器的设计
6.Implementation of Intermediate Frequency Modem of Software Defined Radio Transmitter-receiver;软件无线电台中频调制解调器的实现
7.cable modem线缆调制解调器,[港]电缆调制解调器
8.Design and FPGA Implementation of 16QAM Based on Softerware Radio;基于软件无线电的16QAM调制解调器设计与FPGA实现
9.The Modulation-demodulation and Modulation Recognition in Software Radio;软件无线电中的调制解调与调制识别
10.It"s the combination of modulator and demodulator.调制解调器是由调制器和解调器组成。
11.No dial tone. Make sure the modem is correctly connected to the computer and phone line.无拨号音。请确保调制解调器与计算机和电话线连接正确。
12.Based on the idea of software radio, a new software DS-SS MODEM was proposed and realized.文中立足于软件无线电思想,提出并实现了软件直扩调制解调器。
13.Design of PPM Modulator and Modulator of the Wireless Optical Transmission System Used in Centrifugal Machine一种应用于离心机的无线光传输系统PPM调制解调器设计
14.The Research of Modulation and Demodulation Based on Software Radio;软件无线电中调制与解调技术的研究
15.Research of Modulation and Demodulation Technology Based on Software Radio;基于软件无线电调制解调技术的研究
16.A Design of QPSK modulation and demodulation card based on software defined radio基于软件无线电的QPSK调制解调卡设计
17.modem for carrier-current line systems调制解调器,载波线路系统用
18.The modem is used for connecting a computer to a telephone line.调制解调器（被）用于连接电脑和电话线。
相关短句/例句
line-type modulator线型调制器
1.Employing the typicalline-type modulator, the choice and design of the main circuits parameters are analyzed in practice, and the key device—thyratronis described in detail.5MW脉冲源,它采用放大链形式,末级为速调管放大器,使用典型的线型调制器;阐述了工程应用中脉冲源各主要电路参数的计算和选择,详细说明了其中关键器件闸流管的应用;最后给出了样机的测试波形。
3)linear modulation线型调制
4)line modulator线调制器
5)linear modulator线性调制器
1.Based on the disadvantage oflinear modulator’s DC c harging technology, this paper presents the scanning-back charging technology, analyzes in detail the operation principle of the scanning-back charging techno logy inlinear modulator, introuduces the design of scanning-back charging tran sformer integrating with a high voltage and high powerlinear modulator of a cer tain radar.基于现有线性调制器直流电源充电技术的不足提出了回扫充电技术,具体分析了线性调制器回扫充电技术的工作原理,结合某雷达高压大功率线性调制器介绍了回扫充电变压器的设计。
6)wireless modem无线调制解调器
1.With groupedwireless modem, high frequency wireless digital communication was realized between the control systems of tank farm and light ends output station of Marketing Company in Tuha oilfield.通过集群无线调制解调器的成功应用,吐哈油田销售公司油库和轻烃外运站的控制系统实现了高频无线数据通讯,使销售公司中心调度可在油库中控室同时监测油库和轻烃外运站两站的生产情况,实现并保证了多套系统连接后功能、操作完全一致。
2.Using the short\|wave transmitter\|receiver andwireless modem, we have realized the wireless transmission of the E\|mail.为了便于无线终端特别是军用无线终端发送和接收电子邮件 ,利用现有的短波电台和无线调制解调器实现了电子邮件无线转发功能。
延伸阅读
调制器调制器modulatort loozh一日-调制器(modulator)用调制信号控制载波信号三个参数(振幅、频率或相位)之一瞬时值的电子电路。被控参数为振幅时称为调幅器(a mnlitudemodulator)，被控参数为频率时称为调频器(frequeneymodulator)，被控参数为相位时称为调相器(phasemodulator)。调制器在通信、信号处理和自动控制系统中得到广泛应用。调幅器实现调幅的具体电路有多种。图1(a)所示为利用一个模拟乘法器来实现的原理电路。um(t)为调制信号，u。(t)为载波信号，且峡>>aha，K为模拟乘法器的增益系数。设u。(t)一Urneos%t，u。(t)一Uoeo。叭t，则u‘。(t)~KUmUoeos叽teos峡t一U‘。eos田ct(1)二类。间接调频的原理是:先对调制信号进行积分，再一︵f︸日勺f，kHz┌─┬─┐│ │ │└─┴─┘冷b嘴防︺ “仁 八U‘.l.l..L产J︺。器f，k】Jz△f二7。7kljz“m(f)“。(z)┌─┐│X │┌──┐│ ││带通││ ││ 儿││ │└──┘└─┘ _图2双边带调制的频谱(a)调制信号u。(t)的频谱;(b)已调制信号。飞(t)的频谱;(c)带通滤波器输出的上边带uo(t)的频谱;(d)取用上边带信号的框图对载波信号进行调相，其输出即为已调频的信号。间接调频的优点是载波频率稳定，但频移小，电路复杂。直接调频是直接改变振荡回路的元件参数或直接控制振荡器的工作状态来实现调频的。它的优点是频移较大，线路简单，但载波频率稳定性较差。图3是利用变容二极管的直接调频电路。图中:v七Ll、cl、凡、RZ、c:构成正弦波振荡电路;vZ、LZ和电源U组成变容二极管偏置电路;。。(t)为调制信号;u。(t)为已调频信号;瓜是高频扼流圈，它阻止高频输出电压u。(t)通过，以免影响调制电压um(t)，而允许低频的调制电压um(，)通过去改变变容二极管vZ的两端电压，从而改变v琴的电容，达到改变正弦振荡器输出频率的目的。- 图3用变容二极管的调频电路 调相器调相器的电路也可分为直接调相和间接调相二类，图4为利用移相网络来直接调相的原理电路、图中yl组成倒相电路，。。(t)为载波电压，集电式(l)中，乘法器的输出电压振幅酬。一K队Umcos叽t受调制信号蝙(t)控制，故称振幅调制器，简称调幅器。式(1)又可化为U，。(右)一音K-U·U。「。
