Study and Simulation of Air Influences on Laser Pulse Transmission Delay Time 大气信道对激光脉冲延迟时间影响的仿真研究
Half pulse repetition rate delay 半脉冲重复频率延时
In this article, a programmable pulse delay unit based on EPLD is discussed. 文中讨论了基于EPLD的可编程脉冲延时单元。
We have observed the reduction of group velocity of light via electromagnetically induced transparency ( EIT) and measured the dependence of pulse delay on the one-photon detuning in a three-level Λ-type atomic system. 在∧型三能级rb原子介质中,观察到了由电磁感应透明(eit)效应导致的光减速现象并测量了光延迟对单光子频率失谐量的依赖关系。
Programmable Pulse Delay Unit Based on EPLD 基于EPLD可编程脉冲延时单元及其应用
A Large Dynamic Range, High Resolution Pulse Delay Circuit Design 一种大动态范围高分辨率的脉冲延迟器设计
The frequency information of pulses is generated by programmable data sequence which controls the pulse width and delay. 脉冲所需的频率信息通过可编程数字信号产生,该数字信号控制脉冲的波形包括脉宽和延迟;
The system can simulate the process that the missile approach to the target quickly from far to near, overcoming the disadvantage that pulse delay can not change continuously and vary with time in the past test set. 该系统克服了以前引信测试设备中延时无法连续可变和不能时变的缺点,能模拟弹目交会时导弹由远到近快速接近目标的距离变化过程。
A Ranging Method Based on Pulse Delay-Comparing 基于脉冲延迟比较的测距法
This paper mainly introduces the computation of time interval of pulse delay in the design of pulse positioning of rise and fall frequency of step motor with microcomputer control. 主要介绍微机控制步进电机升降频脉冲定位设计中,脉冲间隔时间的计算方法。
Some techniques for spaceborne electronic reconnaissance and countermeasures, such as single-site passive locating, LPI radar based on single pulse optical fiber delay copying, parallel signal process and electronic jamming technology, are introduced. 介绍了用于星载电子侦察与对抗的单机被动定位技术,基于单脉冲光纤延时复制的低截获概率雷达技术,并行信号检测与分选技术以及电子干扰技术。
Demonstrating the structure and design of the counter+ delay-line module, by which the pulse waveforms with given pulse delay and pulse width delay can be generated. 设计计数器+延迟线模块的组成及方案,并据此实现根据触发信号产生的具有一定脉冲延迟和脉冲宽度的脉冲波形数字信号。
All the results show that energy of pumping pulse is the key factor which determines the width of output pulse and the delay time of output is determined by the energy and width of pumping Together under fixed resonator parameters. 结果表明在固定腔参数下,泵浦脉冲能量是决定输出脉冲脉宽和形状的主要因素,而输出脉冲的时间延迟由泵浦脉冲能量和脉宽共同决定。
This phenomenon is called anomalous pulse delay in microwave propagation. 这被称为微波传播中的异常脉冲延时。
This synchronization control set can improve its imaging quality and its action distance by conveniently adjusting the pulse delay and the pulse width. 这种同步控制装置能方便地通过调整脉冲延时和脉宽来提高系统成像质量和作用距离。
Improvement of Im pulse Generator Pulse Ignition and Delay Device 冲击发生器脉冲点火及延时装置的改进
If the amplifier operates at pulse state, signal transmission rate would be affected by the falling-edge distortion of output pulse and turn-on delay, so it is necessary to study its dynamic properties. 由于系统的传输速率受到脉冲下降沿形变及开启延时的限制,因此对其动态双稳特性的研究很有必要。
The programmable pulse delay is implemented by EPLD. 可编程脉冲延时是由EPLD来实现的。
A novel dual randomized PWM modulator with synchronous varying switching frequency and pulse position delay is proposed to reduce conducted electromagnetic interference ( EMI) in power converters. 提供了一种新的双随机脉冲调制技术,它能够很好地减小电力电子系统中存在的传导电磁干扰,这个调制技术是通过同时改变开关频率和脉冲的上升沿位置来实现的。
Automatic operation in sequence was realized through pulse with precision delay and determinate width triggered corresponding unit of high precision instrument and equipment. 通过严格的延时和相应宽度脉冲触发高精度仪器和设备的相关单元,实现按序自动运行。
In this paper, a pulse delay line with large dynamic range and high resolution is present. 采用数字方法和模拟方法,设计一种大动态范围、高分辨率的脉冲延迟器,可以实现连续变化的脉冲延迟控制。
Study on High Voltage Pulse Delay Line 高压脉冲延迟线实验研究
And it studied the ultra-wideband pulse generator technology, TEM ultra-wideband horn antenna, the pulse signal delay control and power combining key technologies. 重点研究了超宽带脉冲产生技术、TEM超宽带喇叭天线、脉冲信号延时控制以及功率合成等关键技术,研制成功了0.3-2GHz超宽带脉冲发射机原理样机。
Numerical calculations are performed by solving the quantum Liouville equation based on multilevel Bloch model. The molecular orientation degree is sensitive to the carrier-envelope phase of the THz pulse and the delay time between the two pulses. 通过求解多能级布洛赫模型下的量子刘维尔方程,我们发现:分子定向值对太赫兹脉冲的载波相位和两个脉冲之间的延迟时间很敏感。
For digital interpolation method this thesis studies the pulse shrinking method, relay pulse delay method and Vernier method. 对于数字插值法本文研究了脉冲收缩法、传递延时法、Vernier方法三种。
Control system includes two modules, hardware and software. The hardware part includes USB interface, FPGA master chip, phase modulation, power supply voltage conversion circuit and digital pulse delay circuit. 通信双方的控制系统实现分硬件和软件两部分,硬件方面主要包括USB接口、FPGA主控芯片、调相和电源电压转换电路和数字脉冲延时电路。
The pulse duration and delay time of Q-switched pulse was numerically calculated from the rate equations of the semiconductor film passive Q-switched. 3. 建立采用半导体薄膜对双波长激光被动调Q的速率方程组,数值求解得到双波长激光脉冲时间宽度和延迟时间。
The triggering pulse delay unit is developed for the measurement of the Bunch-by-Bunch. 为实现逐束团测量,研制了触发脉冲延迟的电子学电路。
According the known potential curves of the ground state and excited state of CsI molecule, similar to the NaI, the second chapter has calculated the influence of the Stark pulse at different delay time to the two different dissociation channels of CsI. 第二,根据已知的CsI分子基态和激发态的势能曲线,类比NaI分子,理论计算了斯塔克脉冲在不同延时时间下对CsI分子电离解离通道的影响。