本文研究的是微波波段的直接调制技术。
In this paper, direct modulation technology working at Microwave band is researched.
本文分析了直接调制半导体激光的相干性，并予实验证实。
The coherence of a direct modulating diode laser has been analysed and compared with experimental results.
在相同串扰水平情况下，直接调制的功率代价小于外调制的功率代价。
The power penalty of direct modulation is smaller than that of external modulation at the same crosstalk level.
直接调制是把要传送的信息转变为电流信号注入LD或LED，从而获得相应的光信号。
The method of direct modulation is: change the ready information to current signal and then inject the LD or LED to obtain the corresponding light signal, thus the idea is source modulation.
介绍了锁相调频的基本原理，用锁相调频的射频直接调制方法实现了脉冲信号的低抖动传输。
The low jitter transmission of pulse signals is realized by direct RF-modulation based on PLL frequency modulation.
量子阱激光器具有良好的小信号调制频率响应，能作为高速光通信光源采用直接调制方式进行信号传输。
Quantum well laser diodes are of high modulation frequency response. They can be used as light sources and be directly modulated for high bit rate optical communications.
利用光通信系统设计平台，研究了一种基于直接调制激光器和非零色散位移光纤(NZDSF)的高速粗波分复用(CWDM)系统的优化方案。
A new scheme for optimization of coarse wavelength-division-multiplexing (CWDM) system based on directly modulated lasers (DMLs) and non-zero dispersion shifted fibers (NZDSF) is proposed.
当您使用零调制解调器电缆在两台计算机之间建立直接串行连接时，您的电缆必须按下面清单1中显示的方式连接。
When you use a null modem to make a direct serial connection between two computers, your cable must be wired, as shown in Listing 1 below.
主要是数字调制系统、扩展频谱通信原理和直接序列扩频系统等内容。
It mainly contains the digital modulate system, the SS communication theory and the direct sequence spread spectrum (DSSS) system.
多级衍射光所引起的互调光、衍射光的压缩和交叉调制现象直接影响多色光的合成。
Multistage diffraction light produces inter - modulation light, compression and crossover modulation for the diffraction light will directly affect the composition of the polychromatic light.
连接usb或rs232直接输出到您的电脑或笔记本电脑，或通过调制解调器拨号连接的串行端口。
Connect the USB or RS232 output directly to the serial port on your PC or Laptop, or by dial-up connection through modems.
直接数字式频率合成(DDS)技术是一种全数字频率合成技术，其特殊的原理和结构使它具有多种调制能力。
Direct digital synthesis (DDS) is an all digital frequency synthesis technique. Because of its special theory and construction, it has many kinds of modulation capability.
设计并研制了一套基于光反馈效应的直接频率调制激光二极管光电探测系统。
An optoelectronic detection system based on the optical feedback effect in a direct frequency modulated laser diode is developed.
信号调制是数字电视前端最后的一个物理环节，直接决定信号在网络中传输的质量。
Signal modulation is the last physical part of DTV Front-End, which directly determines the quality of network transmission.
提出了一种基于模糊空间矢量调制(SVM)技术的异步电机直接转矩控制(DTC)方案。
A new direct torque control (DTC) strategy of induction motors based on fuzzy space vector modulation (SVM) technology was proposed.
提出一种基于离散空间矢量调制(DSVM)技术的异步电机直接转矩控制(DTC)的改进算法，并对其进行仿真研究。
An improved direct torque control (DTC) algorithm based on discrete space vector modulation (DSVM) is presented, and its simulation research is performed.
烧杯的固有频率可以用直接测量法、共振法或水滴流调制法加以测定，各法中均利用利萨如图形。
The intrinsic frequency of a beaker can be determined by means of direct determination, resonance or water drip modulation, and each of the methods makes use of the Lissajous figure.
目前，无人机数据链系统采用的调制模式都比较简单，如2FSK、BPSK、直接扩频技术等，传输速率与抗干扰能力有限。
The modulation types of data link for UAV are simple, such as BPSK, 2FSK , direct spread spectrum. The transmitted rate and anti-interference performance of them are limited.
分析了调频定距引信中采用变容二极管直接调频时调制的非线性及其对定距精度的影响。
Gives an analysis on the non linearity in frequency modulation when a varactor modulates directly in a FM ranging fuze, and shows its influence on the precision of ranging.
在直接序列扩频通信系统中，假设敌方能够逐个比特地检测到整个PN序列，并产生一个调制的转发干扰。
In direct sequence spread spectrum communication system, enemy is assumed to detect whole PN sequence chip by chip and a modulated retransmitted interference is created.
为了给验证算法提供现实的BPSK调制的直接序列扩频信号，本文详细介绍了一种多参数可调的扩频信号源的设计方案。
In order to supply the actual BPSK DS-SS signal to verify the algorithms, this dissertation present a design method of spread spectrum signal generator with adjustable muti-parameter in detail.
利用直接数字合成(DDS)技术完成对数据的调制。
And while programmed on DSP, we modulated data by the way of Direct Digital Synthesizer (DDS).
直接数字式频率合成技术(DDS)是一种先进的全数字频率合成技术，本文基于DDS的相位调制功能，给出了一种DDS数字移相器的设计方案。
Direct digital synthesis (DDS) is an advanced all digital frequency synthesis technology, based on the PM function of DDS, this paper gives the design scheme of a DDS digital phase shifter.
在现代无线通信系统中，对发射信号进行直接射频调制已成为射频无线电的发展趋势。
In modern wireless communication system, the direct RF-modulation for transmitting signal is a new developing trend of RF radio.
研究了3-3矩阵变换器（MC）基于直接传递函数法控制的原理，推导出了基于直接传递函数调制的矩阵变换器的控制过程。
The principle of 3-3 matrix converter(MC) based on direct transfer function control is studied and the control process of the matrix converter based on this control is deduced.
和单色激光的衍射不同，宽带的飞秒光束衍射调制较小，直接利用锯齿光阑，便能获得近场光强分布相对均匀的光束。
The diffraction modulation of ultrashort pulsed-laser is less than that of CW laser, so only serrated aperture can be used to get uniform near-field uniform intensity distribution.
介绍了一种采用矢量细分和SVPWM调制的直接转矩控制方法，实现对电机转矩的控制。
A novel direct torque control method based on vectors subdivision and SVPWM is presented in this paper.
本设计基于软件无线电的思想，使用软件的方法直接对短波信号进行处理，实现AM语音调制语音信号全数字解调。
In my design, signal is processed directly with software method based on software radio idea, which realizes the AM signal demodulation.
分析了在直接频率调制下，激光二极管中的光反馈效应，探讨了振动微小位移和速度的理论模型。
By analyzing the direct frequency modulation and optical feedback effect of laser diode, a theoretical model for measuring small vibration displacement and velocity is discussed.
分析了在直接频率调制下，激光二极管中的光反馈效应，探讨了振动微小位移和速度的理论模型。
By analyzing the direct frequency modulation and optical feedback effect of laser diode, a theoretical model for measuring small vibration displacement and velocity is discussed.
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