Two-level systems under the action of a laser pulse train are studied by rotating-wave approximation.
本文采取旋波近似，分析了序列脉冲激光作用下的双能级系统。
The new methods can be used in both detection of FMCW echo and frequency estimation of correlative pulse train.
这两种方法既可用于多段线性调频连续波探测回波的积累检测，也可用于多个相参脉冲信号的积累与频率估计。
Light source in optical transmission system, waveform shaper, optical pulse train generator, and optical reproduction system.
光传输系统中的光源，波形整形器，光脉冲串发生装置以及光再现系统。
The experimental results reveal that the transistor type pulse train generator is unsuitable for micro-EDM due to its low removal rate.
实验结果表明，自振式晶体管脉冲电源因其加工速度慢并不适于微细放电加工。
Level dropout: This detects an edge followed by a specified time with no edges. It is useful for triggering on the end of a pulse train.
水平失真触发：当信号变高或者变低，并保持此状态超过指定时间时触发。这是很有用的对于脉冲串的末端触发。
The theoretical results show placing the acoustic-optic Q-switch crystal near the output mirror can improve the stability of pulse train.
计算表明：Q开关放置在输出镜一侧会使脉冲序列更加稳定。
A new method for ultrashort optical pulse train generation from a cw signal in the normal dispersion regime of optical fibers is suggested.
提出一种在单模光纤正常色散区由连续波产生超短光脉冲串的新方法。
To improve the range resolution of Mono-Pulse Train (MPT), the linear step frequency signal is introduced and used widely in modern radars.
为了提高脉冲串信号的距离分辨力，曾有文献提出了对子脉冲的载频进行线性递增的方法。
This method can be used to describe the resonant multi-photon processes that the pulse train from the mode locked laser interacting with atoms.
用多模相干态描述光场，应用预解算符和投影算符推导演化算符，使本方法可统一处理锁模激光脉冲序列输出及原子的共振多光子过程。
Pulse train produced by clock circuit of the transducer has improved waveform and output waveform is stable implemented by mono-stability circuit.
变送器触发源电路保证产生的脉冲串具有改善的波形，单稳态电路实现输出波形的稳定。
If the modulation rate is high, it is possible to smooth out the pulse train using passive electronic filters and recover an average analog wave form.
如果调制率高，是有可能顺利进行，脉冲列车使用被动电子过滤器和收回平均模拟波形。
With broad gain spectral width of SOA and large tuning range of filter, the output power of the output pulse train could keep big enough over a large tuning range.
由于半导体光放大器的宽增益谱与滤波器的较大可调谐范围，使得激光器输出可以在较大的波长可调谐范围内保持较大功率输出。
Besides the conventional single pulse train generation, the ti: sapphire laser system sometimes produces two or even more pulses should proper conditions be satisfied.
在自锁模钛宝石激光器中，除可形成传统的单脉冲外，在适当的条件下，还可产生双脉冲。
Pulse compression can be performed in direct detection radars by using a newly proposed stepped time intervals coding pulse train and corresponding correlation algorithm.
本文提出一种可用于直接检测雷达的步进时间间隔脉冲串实现脉冲积累的新方法。
This paper discusses the main points of design of the pulse train tracker in which the MCS-96 16 bit single-chip computer is used and the main character of the tracker is given.
本文论述了用MCS-96十六位单片机构成的脉冲序列跟踪器的设计要点，以及该跟踪器的特点。
The rational harmonic mode-locking has become a research subject of intense interest due to its application on the generation of ultra- high repetition frequency optical pulse train.
有理数谐波锁模技术是产生高速超短脉冲的重要技术之一，其光时分复用通信技术等领域中有重要的应用价值。
The magnetic sensor has characteristics of high sensitivity and quick response due to the amorphous wires excited directly by sharp pulse train current containing amount of harmonic signals.
采用含有丰富谐波分量的窄脉冲电流作为励磁信号对非晶丝直接励磁，使传感器具有灵敏度高、响应快的优点。
A sensitive, stable and low power consumption magnetic sensor is constructed using a CMOS multivibrator circuit, in which a sharp pulse train current is applied to the treated amorphous ribbon.
同时利用CMOS多谐振荡电路产生窄脉冲电流序列对前面处理过的非晶带进行激励，制作成灵敏度高、稳定性好、功耗低的弱磁场传感器。
I'd chosen to travel by rail not for any anoraky reasons, but because I have always found a train, particularly a slow train, a good way of taking the pulse of a place.
我选择坐火车旅行因为我发现坐火车，尤其是慢车是观察一个地方很好的方式。
It USES binary counters for the conversion of the multiplicand from parallel to pulse-train form.
它采用二进制计数器以把被乘数由并行形式转换成脉冲序列形式。
This buzz was being caused by the train of very short pulses of microwave signal, each pulse causing a single click.
它是由非常短的微波脉冲信号引起的结果，每一个脉冲发出一声响声。
Participate in interdynamic to review school train establishment idea and new educational view first pulse that new course recommend of mode communicate originally.
参与互动反思校本培训模式的创建理念与新课程所提倡新教育观一脉相通。
A pulse-train generator using DIAC and single capacitance timing applied to the burst flashing signal lamp is proposed.
提出了一种基于双向触发二极管和单电容定时的，用于爆闪式信号灯的脉冲序列发生器。
The enable-A signal must be released before the pulse-train inputs are enabled.
在允许脉冲序列输入之前，A的通信号必须消失。
Results of the computations show that on overline bridge a pressure pulse occurs while a train passes. the coefficients of the pressure pulse range from-0.135 to 0.095.
结果表明，高速列车通过时跨线天桥表面受到空气压力波的作用，压力系数的波动范围为-0．135～0．095。
The aerodynamic shape design of train head should consider all kinds of factors because the relation between reducing aerodynamic drag and air pressure pulse may be conflictive and uniform.
减小列车空气阻力和降低列车交会压力波，既矛盾又统一，列车气动头部外形设计需要综合考虑各种因素。
The asymmetrical slippage grid technique, the numerical computation, the moving model test, and the full-scale train test for air pressure pulse from trains passing each other are introduced.
讨论了列车交会空气压力波数值计算方法、动模型及在线实车试验技术，论述了非对称滑移网格技术。
The asymmetrical slippage grid technique, the numerical computation, the moving model test, and the full-scale train test for air pressure pulse from trains passing each other are introduced.
讨论了列车交会空气压力波数值计算方法、动模型及在线实车试验技术，论述了非对称滑移网格技术。
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