time coherence

With quasimonochromatic thermal light as an example, the values of coherence time and coherence length in various definitions are compared each other.

并以准单色热光源为例，比较了它在不同定义下的相干时间、干长度的取值。

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This character of HLR data is called temporal coherence, which is assured by the real-time performance in the access operation of data.

HLR数据的这种特性称为时间一致性。数据的时间一致性是通过数据访问操作的实时性保证的。

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And several commonly used parameters which represent the electromagnetic wave propagation process are introduced, such as power delay profile, time dispersion parameters, coherence bandwidth and fading Doppler spectrum.

并就一些常用的表征电磁波传播过程的参数进行了介绍，如功率延迟分布图、时间色散参数、相干带宽和衰落多普勒频谱。

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Estimating Slowness of Array Sonic Data with Slowness Time Coherence and Genetic Algorithm

慢度-时间相关法与遗传算法结合提取阵列声波时差

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By using mutual coherence function, the characteristics of second-order statistics of the pulse-wave which transmits through the atmospheric turbulence have been studied, including the coherence time and coherence bandwidth.

利用互相干函数，研究了脉冲波穿过大气湍流传播的二阶统计特性，包括相干时间和相干带宽等。

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In LAN which use PC and Windows operating system, accurate and effective time coherence using the pattern that software cooperate with hardware is one of the keys for real-time distributed interactive simulation system to improve fidelity and decrease cost.

在采用PC机和Windows操作系统的局域网上用软硬件相结合的方式实现高精度、高效率的时间同步是提高分布式实时仿真系统置信度、降低系统硬件成本的关键。

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At last, a integrated scheme of time coherence was designed, and the purpose to get accurate and effective time coherence and to decrease cost was realized.

最后设计了一个完整的时间同步方案，该方案达到了高精度、高效率时间同步和降低硬件成本的目的。

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The temporal coherence of HLR data: When the properties of HLR subscribers are changed, the relevant data in HLR database must the updated effectively in time.

HLR数据的时间一致性问题。当HLR签约用户的属性发生变更时，HLR数据库中相应的数据必须得到及时有效的更新；

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The recent definitions of coherence time and coherence length are introduced.

综述了目前对相干时间、相干长度的各种定义。

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Fiber grating is manufactured by application of phase mask means, which is of low requirement of time coherence and monochromaticity for light-source, simple craft and high rate of finished products.

运用相位掩模法刻蚀光纤光栅，该方法对光源的时间相干性和单色性要求较低，工艺简单，成品率高。

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Firstly, the transmitter determines the proper time interval d according to the coherence time of the wireless channels. Then several signal vectors with an interval of d are combined together by a singular matrix, and the result vectors are transmitted at the corresponding time slots.

在该方案中，发射机根据信道相干时间确定合适的时隙间隔d，并利用奇异矩阵对多个相距d个时隙的信号矢量进行线性组合，从而得到系统在对应时隙的发射信号。

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In this dissertation, we take range time domain pulse coherence to simulate the distributed target's raw echoed data and make rough imaging processing to the raw echoed data.

本文采用距离时域脉冲相干法模拟得到了星载SAR分布目标回波数据，并对得到的回波数据进行了粗略的成像处理；

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According to fraunhofer single slit diffraction, the paper has discussed the influence of time coherence and spatial coherence of light source in diffraction field, the relation between the diffraction fringe and the source coherence are obtained.

以夫琅和费单缝衍射为例，讨论了光源的时间相干性和空间相干性对衍射场的影响，从而得到光源的相干性与衍射条纹清晰度的关系。

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We consider that the variation of the oscillation frequency and anharmonic oscillation in the process of time evolution originate from the stochastic coherence property of atom oscillators in the system.

认为时间演化过程中振荡频率的改变和振荡的非谐性来源于系统中原子振子的随机相干性。

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Study on Time-Domain Coherence Function

时域相干函数的研究

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In distributed interactive simulation systems, time/ space coherence is one of the key factors. The time synchronization accuracy between the computers must be reached to some degree, and the time resolution of computer's clock is the main factor that restricts the time synchronization accuracy.

时空一致性是分布交互式仿真的关键问题，联网仿真的计算机之间的的时间同步必须达到一定的精度，而计算机的时钟分辨率是制约仿真系统时间同步精度的重要因素。

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Research on Time and Space Coherence in Ballistic Missile Defense Simulation

导弹攻防对抗仿真的时空一致性研究

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In actual producing "603" liquid have to be supplied in time to ensure furnace temperature and carbon deepness equality and coherence and to improve badminton racket performance and quality.

在实际生产中应及时补充“603”液体，保证炉温和碳浓度均匀一致，以提高羽毛球拍杆性能质量。

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Based on the global optimization characteristics of genetic algorithm and the principle of slowness calculating with slowness time coherence, a new integrated processing technique of array acoustic data is proposed with slowness time coherence and genetic algorithm in the paper.

基于遗传算法的全局寻优特点和慢度-时间相关法提取时差的原理，提出了慢度-时间相关法与遗传算法结合的阵列声波测井资料处理方法。

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