signal pulsing造句
例句与造句
- We must shape to the signal pulse
这时必需将信号脉冲整形。 - A study of the shaping of signal pulse under the condition of a synchronous pulse pump
同步脉冲泵浦下信号脉冲整形的研究 - Laser light - scattering event - a signal pulse that locates surface imperfections on a wafer
激光散射-由晶圆片表面缺陷引起的脉冲信号。 - Analysis of compression characteristics of gaussian signal pulse in semiconductor optical amplifiers by utilizing rectangular control pulse
矩形控制脉冲在半导体光放大器中对高斯信号脉冲的压缩效应分析 - It emphases on the system of signal pulse signal channels , and sets forth the methods of realizing 、 way of demodulation 、 advantage and disadvantage . afterwards , the paper introduces how to design a “ s band remote measuring receiver ”
重点介绍了单通道单脉冲跟踪体制,对其实现途径、解调方式、较其它体制的优缺点作了全面的阐述。 - It's difficult to find signal pulsing in a sentence. 用signal pulsing造句挺难的
- In this paper , we frist discuss the radar signal pulse and it ' s parameters , then we introduce the principle and method of the measure . at last we introduce how to get the pa , pw and toa based on xilinx spartan - ii fpgas
本论文首先对脉冲及其参数进行了分析，然后介绍了雷达脉冲参数测量的原理，并针对现代复杂电磁环境的特点，对脉冲参数测量的方案进行了设计。 - The optical channel models for airborne submarine laser communication are built . the multipath time spreading of signal pulse is studied . the waveform of received signals in receiver in submarine laser communication system is analyzed and simulated
通过蒙特卡罗方法的模拟研究，建立了机载激光对潜通信的光脉冲传输模型，研究了信号光脉冲的时间扩展，分析并模拟了接收面上的接收波形。 - At present , signal pulses produced by directly modulated laser diodes have been used in optical fiber communication systems . the experiment reveals that the optical pulses from directly modulated laser diodes are far from gaussian and have near - rectangular temporal profiles with much sharper leading and trailing edges , and then a super - gaussian model , which assumes that an incident optical pulse has a super - gaussian profile , may be more suitable
但在实际的光通信系统中，人们常采用由直接调制半导体激光器产生的光脉冲作为信号脉冲，而实验结果表明这种脉冲具有比高斯脉冲更为陡峭的前沿和后沿，其脉冲形状更接近于超高斯分布，并且通常还带有一定量的啁啾。 - Agrawal ' s theory model of soa ca n ' t simulate accurately the amplified signal pulse shape in soa when the pulse width is as short as several picosecond . so we simulate accurately the peak power , full width half maximum , rising time and falling time of amplified pulse after considering the gain compression , gain asymmetry , gain shift , gain variable with situation and time . with ultrahigh velocity dense wavelength division multiplexing ( dwdm ) and optical time division multiplexing ( otdm ) developing , we demand more and more short signal pulse and more signal channels
但当信号脉冲的宽度只有几个皮秒时， soa传统的agrawal理论模型已经不能完全准确地模拟soa对信号脉冲的放大情况，在此基础上，我们在全面考虑soa的增益压缩、增益非对称和漂移、增益随位置和时间变化的载流子寿命等物理机制的情况下，对皮秒超短高斯信号光脉冲经soa放大后的脉冲的峰值功率、脉冲半值全宽度、脉冲的上升时间和下降时间等重要物理参量进行了准确模拟和详细研究。 - In the picosecond and femtosecond time field , the durations of the pump and signal pulses are so short that special propagating characteristics of ultrashort pulse laser should be taken into account , especially the pulse broadening induced by the group velocity mismatch and the group velocity dispersion
在皮秒和飞秒时域，由于泵浦光与产生的信号光的持续时间特别短，故在讨论超短脉冲与物质相互作用时必须计及超短脉冲在介质中传输的特殊性质，尤其是群速失配与群速色散引起的脉冲展宽。 - Nonlinear directional coupler ( nldc ) is a switch used in optical network . w . s . man had studied transmission controlling with ground state soliton through nldc , it is obviously not available to used in superhigh speed network ; and mary j . potasek had studied the self - coupling with ultrashort solitons in nldc , self - coupling is difficult to control the signal transmitting . i has studied the transmission controlling with ultrashort solitons ( < 100fs ) in nldc , similarly i use a controlling pulse to control the signal pulse , it is the intensity of controlling pulse to decide the signal change its direction or not
非线性定向耦合器( nldc )是用在光网络中的光开关器件，它主要用在全光网络中， w . s . man等研究过基态孤子在nldc中的传输控制，便于对全光网络中数据的正确传输，由于目前研究集中在100fs的超短脉冲传输特性上，显然基态孤子的特点不再适用于超高速网络； maryj . potasek等就超短脉冲在nldc中的自耦合做了研究，在光网络中自耦合任意性太大，不利于控制脉冲的传输。 - Active underwater acoustic positioning / tracking systems locate target by measuring the range from object to receiving sensors . usually the target - receiver range can be got by the propagating time of a signal pulse . if this propagating time is larger than the pulse repetition period , it will mean that more than one signal pulse are on propagation
主动水声跟踪定位系统通过测量脉冲信号的传播时延可以测得目标相对接收机的距离，当此传播时延大于系统同步周期时，时延测量就会呈现不确定性，可能相差若干个重复周期，导致定位解多值，称之距离模糊现象。 - A numerical simulation method is presented for studying the light storage based on the technique of dynamic eit . comparing with analytical method under certain limitations , this numerical method has advantages to study the change of the signal pulse with the effect of various factors , such as atomic decay and so on
采用数值模拟的方法研究基于动态电磁感应透明dynamic eit技术的光存储，与通过近似得到解析解的方法相比，此方法更有利于研究各种因素如原子弛豫对存储过程的影响。 - But the development of dwdm ca n ' t be satisfied for finite wavelengths . however aowc can make the wavelengths reused . a novel project is explored for signal pulse compression and shaping by utilizing the co - propagating second order super - gauss control pulse and gauss signal pulse in semiconductor optical amplifier
随着超高速密集波分复用( dwdm )和光时分复用( otdm )的日趋发展，要求信号脉冲的脉冲宽度越来越窄和复用的信道数也越来越多，但有限的波长资源不能满足dwdm的发展要求，而波长转换技术可以提高信号波长的重复利用率。 - The results show that wavelength locates in gain zone of semiconductor optical amplifier , and have higher peak power and proper time delay between the two pulses for the second order super gauss control pulse in semiconductor optical amplifier . a high quality amplified signal pulse can be achieved . the chirp can be reduced notability by using cascading soa in cross gain modulation based on soa , and the distance and the peak power of conversion optical pulse can be increased notability , and we can let down the demand for wavelength based on xgm in soa and enhance the flexibility of wavelength conversion
我们应用二阶超高斯光脉冲与高斯信号脉冲同时注入soa和应用soa与非线性光学环镜( nolm )相结合的方案来对信号脉冲进行压缩整形，模拟显示，在调节系统合适参数的情况下，波长位于soa增益区的二阶超高斯控制光脉冲在具有较高的峰值功率和适当时延下输入soa时，最后可以得到放大的高质量超短信号光脉冲；在基于soa的交叉增益调制( xgm )全光波长转换中，采用级联的soa能有效地使反转光脉冲的频率啁啾得到有效降低，波长向下转换的距离和反转光的峰值能量都得到明显提高，降低了利用交叉增益调制( xgm )波长转换中对波长精度的要求，从而提高了波长转换的灵和性。