pulse signal

Control circuit is taking pulse wide modulation circuit as core. By comparison of given signal and feedback signal of overvoltage, get the width-adjustable pulse signal for regulating output of welding power source so as to realize the colsed-loop control to arc-welding inverter.

控制电路以脉宽调制电路为核心，通过电压给定信号和反馈信号的比较，获得宽度可调的脉冲信号，调节焊接电源的输出，并实现对弧焊逆变器的闭环控制。

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Light pulse signal amplification by optical bistable device

混合型光学双稳态的光脉冲放大

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It is found that selecting appropriate value of duty cycles of Gauss light pulse signal, frequency chirp and the roll-off factor of raised cosine pulse signal produced by the equalizer of an optical receiver can improve the sensitivity of the optical receiver.

发现适当选取高斯光脉冲信号的占空比、啁啾分量、光接收机均衡滤波器输出的升余弦频谱波形滚降因子的值可以提高光接收机灵敏度；

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The Generation of Cosine Pulse Signal with Four Phase Codes

余弦脉冲四相码信号及其产生

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And pulse signal generator and probe of oscilloscope are used to measure current pulse and I-V data through which a calibration curve is ploted.

同时在该测量系统标定时，利用脉冲信号源和示波器的电流探头进行测量，得到一组电流脉冲&示波器读数（I-V）校正数据，用这组数据绘制一条校正直线。

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It points out that the speed does not bring about error when the phase difference between test pulse and exciting signal is 90 °.

认为在测量脉冲与激磁信号相位相差90°时，运动速度不会造成测量误差。

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After simulation of MATLAB proof method is feasible, and carries on test to digitized pulse laser signal processing system, receives the good results.

经MATLAB仿真证明方法可行，并对数字化脉冲激光信号处理系统进行实验测试，收到良好效果。

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By optoelectronic conversion, the displacement value is transformed into electric pulse signal.

通过光电转换，将位移量转换成电脉冲信号。

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Mean Arrival Time of Pulse Signal Propagating Through Ionospheric Irregularities

穿过电离层电子密度不均匀体的脉冲平均到达时间

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The result proved the pulse signal from the GPS receiver has a long time frequency stability.

这些试验结果证明了GPS接收端输出脉冲信号的长期稳定性。

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Study on the Methods of Speed Pulse Signal Processing for Vehicle Speedometer Tester

车速台速度脉冲信号的处理方法研究

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In the course of transmission, mud pulse signal mainly disturbed by drilling pump, engine in the bottom hole, air bladder contained in mud and movement of drilling equipment.

泥浆脉冲信号在传输过程中主要受钻探泵、井底动力机、泥浆中的气泡及活动钻具的干扰；

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Meanwhile, the function of slave interface is to convert the data from terminal units into M-bus pulse signal according configuration of pulse increment and unit of different terminal instruments.

所设计的从机接口的功能是，按要求发送、接收数据，并将终端仪表的数字信号转化成M-BUS电平信号。

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In time-division multiplex analog video signal system, the chrominance signal may be compressed along the time axis with the modulated clock pulse by the luminance signal so that the frequencies of time-compressed signal become homogeneous.

在时分多路复用（TDM）的信号系统中，用调制的取样脉冲沿时间轴压缩色度信号的同时，可使色度信号的频率匀化，从而克服信号的时间压缩与频带扩展的矛盾。

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This paper presents the pulse signal spectrum bandwidth using Romberg numerical integration algorithm under a certain energy wastage required. A reconstruction signal is obtained by Fourier Series, and the optimum bandwidth of the measurement system is also presented.

本文用Romberg数值积分法计算出在一定能量损耗限值要求下的脉冲信号频谱宽度，并用付氏级数对其进行了信号重构验证，据此得出了脉冲信号测试系统带宽的最佳值。

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Then the factors of accuracy and the requirements of the emission module are analyzed. A specific laser diode with integrated MOSFET and capacitor and a dedicated driver chip are used in the system to output high-quality laser pulse as the ranging signal.

文章首先分析了激光脉冲发射系统对测距精度的影响因素和对发射模块的要求后，系统采用专用集成MOSFET和电容的激光二极管和专用的驱动芯片产生高质量的激光脉冲作为测距信号。

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It has control opening and closing of the gun according to the pulse signal and can conduct tracking control of the thermosol through of thermosol through connecting with the production line.

可根据脉冲信号控制枪体的开启与关闭，能与生产线信号连接对热熔胶机进行自动跟踪控制。

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It can be found that: when writing the holography with long signal pulse and short reference pulse, the signal pulse can be reconstructed totally if the reading pulse is short enough;

结果发现，长信号脉冲和短参考脉冲干涉记录全息后，如果用足够短的脉冲读取，衍射完全再现了原输入信号脉冲。

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Inputting high-frequency and single pulse signal into coaxial line, the time delay and distortion caused by dispersion can be recorded and measured by digital oscilloscope. The line length and attenuation coefficient are achieved.

将高频单脉冲信号输入同轴电缆，借助数字存储示波器记录输入、输出端的波形和相对延时，可以测量传输线的电缆长度和衰减系数，同时观察脉冲波形因色散引起的畸变。

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There is a serious requirement for phase consistency of T/ R model from active phase control array radar. The test for pulse signal phase is comparatively complicated. Three phase test methods for the microwave pulse power amplifier are presented in this paper.

有源相控阵雷达对T/R组件相位一致性有严格的要求，脉冲信号相位的测试比较复杂，本文提出了三种微波脉冲功率放大器相位的测试方法。

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Acoustic measurement and spectral characteristic analysis of two kinds of pulse signal

两种脉搏信号的声学检测与谱特征分析

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The technology principle and circuit realization are introduced for pulse signal transmission through single cable.

介绍了用单芯电缆传输脉冲信号的技术原理和电路实现,分析了实现电路的耐压性能和传输性能.

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Based on Statistical Theory of Pulse Signal Flow, a statistical model for one-dimension probability density function ( PDF) of electromagnetic interference pulse flow caused by group electromagnetic interference sources is discussed in this paper. This model has universality.

使用脉冲信号流统计理论，建立了由群体电磁干扰源产生的电磁干扰脉冲流的一维概率密度函数（pdf）统计模型，具有普遍性特点。

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Characteristics and Digital Processing of the Carotid Pulse Signal

颈动脉信号特征及数字处理

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The strong pump pulse will change the spectrum of weak signal pulse by the XPM effect as a result that the time domain waveform of weak signal pulse is also changed remarkably by combining the dispersion effect.

受交叉相位调制作用的影响，强泵浦脉冲将改变弱信号脉冲的频谱，在联合色散效应后，弱信号脉冲在时域上的波形也将发生显著改变。

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The extraction methods of pulse signal envelope feature using the complex wavelet transform and Hilbert transform are discussed in the article, by which we extract the rising edge, falling edge, envelope top drop and pulse width as the final feature values.

研究了对脉冲信号包络特征的提取方法，利用复小波变换和希尔伯特变换获取稳态信号包络，提取上升沿、下降沿、包络顶降以及脉宽等参数作为稳态特征。

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Under the circumstance that the influence of atmosphere on laser pulse is ignored, the models of return signals and target response function are concluded, which indicates that return signals can be look as the convolution of transmission signal and target response function.

在忽略大气对激光脉冲的影响下，推导出接收信号和目标响应函数的理论模型，表明了接收信号可以看作是发射信号与目标响应函数的卷积。

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The stepping motor which drives the cigarette bin can use the pulse signal to directly implement the open-cycle positioning control, with a certain precision, simple control circuits, convenience for use and reliability.

驱动烟仓用的步进电机可以用脉冲信号直接进行开环定位控制，具有一定的精度，而且控制线路简单，使用方便、可靠。

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If the liquid in the diaphragm cavity to promote too little to promote liquid, the magnet will move to the ZSL trigger, the trigger output of a pulse signal to the PLC control box.

如果在隔膜泵推进液腔内推进液太少，磁体将移动到触发器ZSL处，触发器输出一个脉冲信号到PLC控制箱。

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Test method of pulse signal generators

GB/T9318-1988脉冲信号发生器测试方法

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