调制用于根据外部控制信号对流量进行控制或调节。
Modulation is used to control or throttle flow in response to an external control signal.
有线遥控是通过专用电缆或动力线作为载波体，对信号用调制解调器传输方式，达到只用少量通道即可实现控制的方法。
Wired remote control is a dedicated cable or power line as a carrier, the signal with modem transmission mode, to achieve a small number of channels can be used to control the method.
利用电压空间矢量脉宽调制(SVPWM)信号变换控制功率变换器各开关器件的导通占空比，实现异步电动机的速度调节。
Using space vector pulse-width modulation (SVPWM) signal transformation method, speed regulation of induction motor is implemented by controlling the duty ratio of every converter switch.
该全光脉冲整形器利用波分复用器将控制光脉冲引入光纤环形镜中，控制光脉冲由于交叉相位调制在信号光上产生了非线性附加相移。
Control pulse is coupled into this pulse shaper by wavelength division multiplexer. Nonlinear phase shift of signal laser is induced by control pulse because of cross phase modulation.
本文首先介绍了ALE协议的基本内容，分析了ALE系统的结构和设计思路，然后对8cpfsk信号的调制解调技术、差错控制技术进行了理论研究。
Firstly, ALE system's base content is introduced, then an analysis of ALE system's structure and design is put forward, and then 8cpfsk modulation theory and error control technique are discussed.
模拟部分主要包括电源、功率控制、信号产生、信号调制、高压输出控制和反馈控制电路。
The analog part mainly includes power source, power control, signal generation, signal modulation, high voltage output control and feedback control circuit.
设计了以C8051F 060混合信号微控制器为核心的全数字信号检测系统，实现其采样信号和调制信号的相位关系保持。
An all digital signal detecting system using C8051F060 as its core was completed. It can maintain the phase relation of sampling signal and modulating signal.
系统采用空间电压矢量脉宽调制技术得到逆变器的开关控制信号。
The control scheme gets the switch control signal of inverter with the space voltage vector modulation technology.
幅度调制是用调制信号去控制载波的振幅，使其随调制信号线性变化，而保持载波的频率不变。
Amplitude modulation is to control the amplitude of signal carrier and make it change linearly with modulation signals and maintain its frequency.
利用一个自适应控制器跟踪信息信号的误差对产生混沌载波的发射系统进行参数调制。
The parameter of the transmitting system procreated chaotic carrier is modulated by errors from an adaptive controller and information signal.
设计实现了基于差分后谐波检测的微弱信号处理电路、前置放大电路、差分电路、调制电路和光源温度控制电路及电流驱动电路等。
The circuit of Photoelectricity Weak Signal Detection, preamplifier circuit, difference circuit, modulation circuit, optical source thermal control and current drive circuit etc. are designed.
提出一种多直流附加控制器调制信号的选取方法。
A method for selecting the modulation signals of multiple HVDC supplementary controllers is proposed.
在大型构件液压同步提升技术中，采用了计算机输出的脉宽调制信号作为电液比例流量阀的输入电流信号控制液压提升器的速度。
In hydraulic synchronizing lifting technology for oversize structure, computer output PWM signal as the input current of proportional valve is used to control the velocity of hydraulic cylinder.
研究表明，信号调制型SVC综合非线性控制器，能够给系统提供较强的阻尼，从而提高了整个交直流混合系统的暂态稳定性。
The results show that the signal-modulating type synthetical nonlinear SVC controller can provide higher damping to the system, so as to enhance the transient stability of the AC and DC hybrid system.
最后基于经典控制理论的根轨迹法整定直流小信号调制器参数。
Finally, parameters of the HVDC small signal modulator are tuned based on root locus rules of the classical control theory.
阐述了组织温度控制算法、治疗头水温控制以及脉宽调制信号产生三个系统核心子模块的设计。
Real time tissue temperature control algorithm, ultrasound applicator water temperature control and pulse width modulation (PWM) signal generation are described.
DSP依据控制算法产生3路控制信号，FPGA接收DSP数据，并依据简化调制原理产生对应的36路控制信号。
DSP generate 3 way control signals based on control algorithm, FPGA receive the data form DSP and generate 36 way control signals according to the simplify modulation theory.
系统具备对信号的采集、信号的实时处理、与PC机串口通信、产生变频调制信号及控制探测器主被动模式转换等功能。
The function of the system is to acquire signal, communicate with PC, generate the frequency modulation signal, control detector's work mode.
本文报道了流体力学调制伏安法的数字控制和信号处理。
The digital control and signal processing for hydrodynamic modulation voltammetry is proposed. The rotation rate control signal was software generated.
雷达控制器则设置成根据被调制的信号的特征频率修改给定的调制图案。
The radar controller is then arranged to modify a given modulation pattern in dependence on the characteristic frequency of the signal being modulated.
提出了一种直流脉宽调制伺服控制系统的基本框架，其算法通过嵌入式数字信号处理器(DSP)来实现。
A basic frame of direct current pulse width mode of servo control system is presented. Algorithm is realized by embedded digital signal processor.
分析了脉宽调制信号动态调节LED亮度的原理，设计了单片机控制电路；
The principle of PWM signals adjusting LED bright was analyzed, and the controlling circuit of MCU was designed.
分析了各部分的电路结构及特点，讨论了PW M脉宽调制信号生成、逻辑信号综合、驱动控制及电流截止负反馈的具体应用，在此基础上给出了实验数据及结果分析。
It analyses some main circuits's features, including PWM signals, logic synthesis, driver and negative feedback of current cut-off and at last gives the result of experiment.
根据单元级联多电平变换器拓扑结构及其脉宽调制技术的特点，以数字信号处理器和复杂可编程逻辑器件为核心，设计了多电平变换器的控制器。
On the basis of topology of cascaded multilevel convertor and its PWM technique, designed the controller of multilevel convertor at the core of DSP and CPLD.
所述光学调制系统响应 于所述驱动控制信号来产生和调制光并产生图像并随后扫描所述图像以 便投射到屏幕上。
The optical modulation system generates and modulates light and generates an image in response to the drive control signal and then scans the image for projecting onto a screen.
在调制板上进行的试验表明，由于两个控制信号的沿边突然升起，这种噪声是固有的。
Tests on the Modulation Board showed that this noise was inherent due to abrupt rising edges of tw...
采用脉宽调制（PWM ）技术发生脉冲信号，设计了控制电路和IGBT驱动保护电路，研制了专用脉冲电源。
The special pulse power supply is researched and manufactured. The PWM is adopted to produce pulse signal.
通过控制逆变器输入平均电流调节负载功率，简化了电路设计；通过单片机发出高频加低频调制的半桥驱动信号，消除调光过程中的电弧不稳定现象。
A easier and low-cost power control method is proposed in this paper, based on the regulation of the average input current of the inverter.
通过控制逆变器输入平均电流调节负载功率，简化了电路设计；通过单片机发出高频加低频调制的半桥驱动信号，消除调光过程中的电弧不稳定现象。
A easier and low-cost power control method is proposed in this paper, based on the regulation of the average input current of the inverter.
应用推荐