以矩形谱线的光源为例,计算了时间相干度,简要介绍了傅里叶变换光谱学原理。
The author takes light source of the rectangle optical spectrum as an example to calculate time relevant degree and briefly describes Fourier's spectroscopy principle.
数值计算结果表明,光谱开关主要与截断参量、光束菲涅耳数以及光谱相干度有关。
The number of spectral switch increases with increasing Fresnel number and truncation parameter, but.
本文从理论上研究了部分相干情形下,各种相干函数及相干度,对直边象场分布的影响。
This paper deals theoretically with the influences of various kinds of mutual coherence function and the degree of coherence on the distribution of straight-edge generated image field.
光谱开关的个数随着光束菲涅耳数以及截断参量的增大将增多,而随光谱相干度的增大而减少。
The number of spectral switch increases with increasing Fresnel number and truncation parameter, but decreases with increasing spectral degree of coherence.
通过数值计算分析了原子运动速度、场模结构参数和平均光子数对光场二阶相干度和模间相干度的影响。
The influence of atomic motion, the field structure and intensity of photons on second-order correlation function and two-mode correlation function are obtained by numerical calculation.
本文推导两个成份的光学猫态的平均光于数,二阶相干度的表达式及猫态的光子数分布,揭示出猫态的某些性质。
The mean photon number, the second-order coherence and the distribution of this optical cat state are derived in this paper and some properties of this state are presented.
在讨论服务集成成熟度时,工作流是一个特殊类别,这是因为它们原本与集成不相干。
Workflow is a special category when discussing service integration maturity because they are not innately linked to integration.
这种均衡器可以和非相干检测器配合使用,从而在存在码间干扰的情况下实现低复杂度的完全盲均衡。
This blind equalization algorithm can work with a noncoherent decoder, resulting in a low-complexity and completely blind method for decoding in the present of ISI.
每个轴瓦的流量采用调速阀进行调节,精确度高,互相干扰小。
The flow of each axle bush applies speed control valve to regulate, with high precision and low interference effect.
还测量了磁场横向分布的均匀度,为将要进行的相干辐射和自由电子激光研究提供实验数据;
The uniformity of the transverse distribution of the field is checked to provide the experimental data for the coherent harmonic generation and FEL investigation in the future.
因而有必要对其进行深入细致的研究,以期获得更高精确度和更稳定激射波长的相干光源以满足信息高速、大容量传输的要求。
Therefore, the characteristics of ECSL should be studied farther to acquire the coherent light source with more accurate and stable lasing wavelength.
光纤低相干干涉技术已经被广泛用于高灵敏度的测量技术当中。
With the increasing use of optical coherence tomography, the study of the signal-to-noise ratio in low-coherence interferometry has been of increasing concern.
优化相干态量子隐形传态的保真度。
Optimizing the fidelity of coherent state of quantum teleportation.
对于理想的相干光,影响干涉条纹可见度的主要因素是光波的光强。
For an ideal coherent light, the chief factor that affects fringe visibility is light intensity.
激光相干阵列成象雷达系统中本振光波前与信号光波前匹配与否直接影响系统的灵敏度和分辨力。
The matching of the local light wavefront and signal light wavefront in the laser coherent array imaging radar system will directly affect the sensitivity and resolution of the system.
天猫商城女装名店产物的图象化流传后果重要与拍摄情况、模特五官的塑造、受众的体验度、网页的美感度等身分相干。
Lynx mall ladies brand product image spread important consequences and shooting experience, model features of shape, the audience, the beauty of the page of the element such as coherent.
本文介绍采用相干接收方法的高密集度频分复用光纤通信的基本原理及实现这种接收方法的技术难点。
This paper introduces the fundamental principle of the high density FDM fiber optic communications with coherent reception and key points for its realization.
但SAR图像容易受到相干斑噪声的影响,而光谱图像普遍存在目标与背景对比度差、边缘模糊的缺点。
But SAR image is liable to be affected by speckle noise, while almost spectral image have shortcomings of low contrast between object and background, edge blurring.
我们的研究表明,当纠缠相干态处于非最大纠缠态时, 我们可以通过增大激发的程度来提高此方案的保真度。
Thus, for both theoretical and experimental reasons it has become interesting to investigate the entanglement of photon-added entangled coherent states and their applications to quantum teleportation.
通常的编码协作采用相干检测方式,要求精确的信道估计,从而增加了系统实现复杂度。
Coherent detection is always used in coded cooperation system, but it needs accurate channel estimation, which increases the system complexity.
条纹对比度受光源谱分布、成像距离、光源空间相干性这些因素的影响,对参数的研究给出了它们的参考值。
Various parameters insisting of spectrum of source, imaging distance and spatial coherence can influence visibility of fringes. Their referential values were presented in this paper.
面向GPS软件接收机高灵敏度捕获应用,提出了一种新的基于简易差分相干积累的高灵敏度捕获算法。
According to the practical application background, a new and high-sensitivity acquisition method of software GPS receiver is proposed based on ingenious differentially coherent integration.
平均保真度也可以通过调节相位退相干和失谐得到提高。
The average fidelity can be improved by adjusting phase decoherence and detuning.
对两束相干光写入稳态相位栅的衍射效率进行数值模拟,发现在某一角度范围内衍射效率有一最大值存在。
Diffraction efficiency was simulated theoretically in the stable state phase during the double coherent light coupling and a maximum value of diffraction efficiency was discovered in some Angle scope.
为了在相干象增强系统中提高象的对比度,突出所需用的信号,采用了偏振滤波器。
In order to improve the image contrast and to single out the desirable signals in a coherent image enhancement system, a polarizing filter was used.
采用四波混频加强SBS的方法,其相干拍频驱动声子场,能提高SBS相位共轭保真度。
Brillouin enhanced four wave mixing, whose interference beat frequency drives an acoustic field, can improve the SBS phase conjugation fidelity.
借助于数值计算的方法,研究了非线性相干态光场与一个二能级原子的相互作用系统保真度的变化规律。
We have studied fidelity of two-level atom interacting with nonlinear coherent state light field by numerical calculation method.
相干条纹的对比度为59%,而非相干时对比度为6%。
The visibilities of coherent and incoherent stripes are 59% and 6%, respectively.
移相干涉技术(PSI)是计量测试特别是三维形貌测量中高精度、高灵敏度的测量方法。
Phase shifting interferometry (PSI) is a high precise and sensitivity method in testing technology, especially in three-dimensions profile measurement.
移相干涉技术(PSI)是计量测试特别是三维形貌测量中高精度、高灵敏度的测量方法。
Phase shifting interferometry (PSI) is a high precise and sensitivity method in testing technology, especially in three-dimensions profile measurement.
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