脉冲的

D. Personick, of calculating the sensitivity of the digital optic receiver, the optimal gain of APD and the decision level, is based upon the waveform of input light pulse at the receiver.

本文提出以易于确定的发送端光脉冲波形及光纤展宽参σ＇作为计算出发点，并假定光纤对光脉冲的响应为高斯函数。

An optical method for UWB monocycle pulses generation based on pulse compression in single mode optical fibers is proposed and simulated.

本文提出了一种基于全光纤脉冲压缩的超宽带单周期脉冲的光学产生方案，并进行了模拟仿真验证。

The spectrum evolution of the femtosecond laser pulse in a three-level organic molecular medium 4, 4'-bis(dimethylamino stilbene is studied theoretically by solving the Maxwell-Bloch equations using an iterative predictor-corrector finite-difference time-domain method.

通过采用预估校正的时域有限差分法求解麦克斯韦-布洛赫方程，我们研究了飞秒激光脉冲在三能级有机分子(4， 4'-二甲氨基二苯乙烯分子)介质中传播时脉冲的频谱演化情况。

The spectrum evolution of the femtosecond laser pulse in a three-level organic molecular medium4,4'-bis(dimethylamino stilbene is studied theoretically by solving the Maxwell-Bloch equations using an iterative predictorcorrector finite-difference time-domain method.

通过采用预估校正的时域有限差分法求解麦克斯韦-布洛赫方程，我们研究了飞秒激光脉冲在三能级有机分子(4，4-二甲氨基二苯乙烯分子)介质中传播时脉冲的频谱演化情况。

It is found that even a small walkoff between the compressed bright pulse and the dark soliton can exert non ignorable influence on the bright pulse compression.

作者发现，即使暗孤子与被压缩脉冲的中心波长相差很小，离散效应对脉冲压缩的影响也很大。

First, based on the analogy of the mathematical expressionbetween the propa gation of EM wave and that of seismic wavein a horizontal stratified earth, the re flectivity and transmissionformulation for EM plane wave propagating incident nor malto the layers are derived, the formulation with relation to pseudo-impulse is discussed and pseudo-impulse response is compared with impulse response of re flection seismology.

作者首先基于电磁波与地震波在水平层状介质中传播特征在数学形式上的相似性，推导了垂直入射平面电磁波在层间反射与透射传播函数，并讨论了它们与伪脉冲的关系，与反射地震学中脉冲响应作了对比。

The phase of the clock signal inputted to a panel is made regulatable on the outside in such a manner that the delay amount of the sampling pulses is compensated based on the feedback pulse.

根据反馈脉冲，可在外部调节输入面板的时钟信号相位，以补偿采样脉冲的延迟量。

Differential pressure compensating pump is a new one that can generate underbalance low pulse, it is also called underbalance pulse deep oil well pump.

压差补偿泵是一种能产生负压低脉冲的新型结构的抽油泵，又名负压脉冲深井采油泵。

The gating of PMT was realized with the method of adding the applied gating and gain-control nano-second pulse, and by changing the electric potential difference between the cathode and the first dynode.

采用给PMT外加选通和变增益纳秒电脉冲的方法，通过改变PMT光阴极与第一打拿极之间电势差，实现PMT选通；借助给PMT最后一个打拿极外加变增益高压脉冲改变PMT最后一个打拿极与前置打拿极间的电势差，实现PMT变增益。

The gating of PMT was realized with the method of adding the applied gating and gain-control nano-second pulse, and by changing the electric potential difference between the cathode and the first dynode. The gain control of PMT was complemented by the aid of adding the high voltage pulse to the last dynode of PMT to change the electric potential difference between the last dynode and front dynode.

采用给PMT外加选通和变增益纳秒电脉冲的方法，通过改变PMT光阴极与第一打拿极之间电势差，实现PMT选通；借助给PMT最后一个打拿极外加变增益高压脉冲改变PMT最后一个打拿极与前置打拿极间的电势差，实现PMT变增益。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。