Numerical Simulation of Input Transmission Tower Structure Pulse Wind Based on Modified Von-karman Spectrum Input 修正Von-karman谱输入的输电塔结构脉动风数值模拟
The low jitter transmission of pulse signals is realized by direct RF-modulation based on PLL frequency 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。
Global qualitative analysis of a new SIR epidemic disease model with vertical transmission and pulse vaccination 一类新的含有垂直传染与脉冲免疫的SIR传染病模型的定性分析
Study of electrical soliton as transmission pulse for UWB communication 电孤子信号用于超宽带通信发射脉冲的研究
An SIR Epidemic Disease Model with Vertical Transmission and Pulse Vaccination 具有垂直传染的SIR脉冲预防接种模型
The results from the technique indicate that the transmission of pulse relies on the instantaneous intensity, and the initial energy of pulse. 研究结果表明:光脉冲的透射率与瞬时脉冲强度及脉冲初始功率有关,只有选择适当的初始能量,才能得到较好的整形效果。
The transmission of partially polarized and partially coherent light pulse was discussed. It is shown that in the process of the transmission of light pulse, the matrix elements are independent and satisfy the partially coherent light pulse propagation law. 进一步研究了部分偏振、部分相干光脉冲的传输和变换,发现在光脉冲传输过程中,矩阵元之间相互独立,并且各矩阵元的传输规律与标量的部分相干光脉冲一致。
A new flow-detecting meter, which combines the common water meter with electronic technology has been developed. It digitalizes the water meter flow and carries long distance transmission by pulse flow converter and digital display. 研制了一种将普通水表和电子技术巧妙地结合在一起的新型流量检测仪表,它通过脉冲流量变送器和数字显示器,将水表流量数字化,并进行远距离传输。
In this pager, the self-phase modulation effect in gain saturated semiconductor optical amplifier and its affect on the shape, phase and spectrum of transmission pulse are analyzed. 本文分析了半导体激光放大器处于增益饱和状态下的自相位调制(SPM)效应,以及SPM效应对传输脉冲波形、相位及频谱的影响。
The paper introduces three basic working styles of signal transmission of mud pulse MWD sys tern, pressure positive pulse, pressure negative pulse and continuous pressure wave. 介绍了泥浆脉冲随钻测量系统信号传输的3种基本工作方式:压力正脉冲、压力负脉冲和连续压力波。
In soliton transmission, optical pulse loses soliton characteristic be-cause of decrease of optical field induced by loss in optical fiber. 在孤子传输中,光纤损耗将导致光场减小从而使光脉冲丧失其孤子特性。
Based on simulation, the characteristics and mechanisms of failure on a deep sub-micron grounded-gate NMOS ( GGNMOS) are studied under TLP ( transmission line pulse) stress. 对TLP(传输线脉冲)应力下深亚微米GGNMOS器件的特性和失效机理进行了仿真研究。
In dispersion decreasing fiber, the effect of initial chirp on the quality of soliton-effect compression is analyzed by simulating the transmission of picosecond pulse numerically. 在色散沿光纤传输方向线性减小的光纤中,用分步傅里叶方法数值模拟皮秒脉冲的传输,计算和分析了初始啁啾对色散渐减光纤中皮秒脉冲的孤子效应压缩的影响。
A fiber optic analogue transmission system for pulse signal in strong electromagnetic is introduced. 介绍了一种在强电磁场环境中用于传输脉冲信号的宽带模拟量光纤传输系统。
A selection method of the structure of reversible transmission system with pulse electric current and a design oJ digital regulator are put forward and the results of emulating study are also given. 本文提出了工作在电流断续状态下可逆传动系统结构形式的选择与数字调节器的设计方法;同时配以仿真研究结果。
The influence of polarization mode dispersion ( PMD) on the transmission of pulse at 40 Gbit/ s is investigated by nonlinear coupled equation. 本文利用两垂直偏振分量所满足的非线性耦合方程,分析了偏振模色散(PMD)对40Gbit/s脉冲传输的影响;
A study on transmission of a pulse signal along the long cable 脉冲信号沿长电缆传输的研究
Long Distance Optical Soliton Transmission with Large Pulse Duty Ratio and Large Amplifier Spacing Using Phase Conjugation and Dispersion Allocation 利用相位共轭与色散配置实现具有大占空比和大放大器间隔的长距离光孤子传输
Study on the Transmission of Laser Pulse in Non-chirped Fiber Grating 光脉冲在非啁啾光纤光栅中的透射传输研究
Studies on Stable Transmission of Optical Pulse in Inhomogeneous Fiber Systems 光脉冲在非均匀光纤系统中的稳定传输特性研究
According to the process of design, the device includes: the collection of the pulse signal 、 the transmission of the pulse signal 、 the digital signal processing of the pulse. 按照设计流程,装置主要包括:脉搏信号的采集部分、脉搏信号的传输部分、脉搏信号的数字处理部分。
Transmission of Rectangular Pulse Modulated Signal Through Waveguide and Measurement of the Signal Frequency by Waveguide Time-Delay Method 矩形脉冲调制正弦波在波导中的传输及用波导延时法测量信号频率
The dispersion relation of the optical field close to the photonic band gap in fiber gratings is obtained through theoretical analysis and numerical simulation. The phase velocity, group velocity and group velocity dispersion ( GVD) of the transmission pulse are analyzed. 利用理论分析和数值模拟的方法,计算了光纤光栅中反射带隙附近光场满足的色散关系,分析了传输脉冲的相速度、群速度与群速度色散(GVD)。
In Section 4.1 and Section 4.2, delay SEIR and SEIRS epidemic disease models with vertical transmission and pulse vaccination are discussed, respectively. 第一节和第二节分别讨论了具有垂直传染和脉冲免疫的时滞SEIR及SEIRS传染病模型。
The capillary discharge device is a very complex system that includes the sections of discharge pulse generation, current pulse transmission, predischarge pulse generation and detection. 毛细管放电装置是一个很复杂的系统,包括放电脉冲产生系统、脉冲整形系统、预脉冲产生系统和毛细管放电与探测系统。
In order to transmit pulse signal uniformly on the time domain, IR-UWB system uses the time-hopping sequence to control the transmission of pulse. 为了使脉冲均匀的分布在时域上,IR-UWB系统一般采用跳时序列控制脉冲发送的时刻,不同的跳时序列确定了不同的跳时逻辑信道,数据传输可以在不同的跳时信道上同时进行。
The transmission of normal pulse in fiber is reviewed and analyzed, including the effects of loss, dispersion and nonlinear on pulse. 对普通光脉冲在光纤中的传输进行了详细的回顾,其中包括光纤损耗、光纤色散和非线性现象对光脉冲的具体影响。
Transmission pulse oximeter has been used widely in clinical and family health care which can realize non-invasive oxygen saturation detection. 脉搏血氧饱和度检测仪可以实现血氧饱和度的无创检测,在临床和家庭保健中广泛使用。
Focused on the linear coupling coefficient between mode dispersion coefficient, the input pulse power and Raman scattering parameters caused by changes in the transmission of pulse waveform changes, analyze the causes, of the above on impulse transmission importance. 主要讨论了线性耦合系数、模间色散系数、脉冲的输入功率和拉曼散射项参数的改变所引起的脉冲的传输波形的变化,分析了形成原因,研究了上述各项对脉冲传输的重要性。