In this case, phase matching has not been completed.
在这种情况下,相位匹配还没有完成。
To keep the continuity between different frames, phase matching algorithm is also utilized.
在正弦波合成中采用相位匹配合成算法,保证了帧间参数的连续性。
Asimple method for calculating optimum phase matching parameters for biaxial crystals is presented.
本文提出一种计算双轴晶体最佳相位匹配参量的较简单的方法。
The self induced phase matching in four wave mixing in a nonbirefringent single mode optical fiber has been observed.
报道了无双折射单模光纤中四波混频的一种新型相位匹配方式。
A improved Signal Phase Matching Principle - Signal Phase Matching Principle based on autocorrelation is proposed in this dissertation.
提出了一种改进的信号相位匹配原理——基于相关的信号相位匹配原理。
The third-order nonlinear susceptibilities of the plasma are derived analytically and the condition to satisfy the phase matching is discussed.
文中解析地导出此情况下等离子体介质的三阶非线性极化率,并讨论其位相匹配条件。
The paper discusses the methods of iris location and image enhancement, and proposes a phase matching algorithm to recognize and identify iris.
此文讨论了虹膜图像定位、增强等预处理的方法,并提出了一种相位相关的匹配算法对虹膜图像进行识别和判断。
In Cerenkov second harmonic generation (CSHG) scheme, the phase matching condition is satisfied automatically, but the conversion efficiency is low.
切伦科夫方案中,相位匹配条件可以自动满足,但是倍频效率较低。
Based on the fundamental principle of nonlinear optics, the principle and condition of quasi-phase matching (QPM) are deeply studied in this thesis.
论文在非线性光学基本原理的基础上,进一步深入研究了准相位匹配原理和实现条件。
By following the way of studying the nonlinear effect as a whole, the influence of the SPM and XPM to the phase matching condition of FWM is studied.
根据综合研究非线性效应的考虑,本文研究了自相位调制及交叉相位调制对四波混频相位匹配的影响,在一定的简化下得到了解析的结果。
The factors affecting the best phase matching condition and the methods to expand the tunable range of VUV output in the weak pump case are discussed.
特别着重讨论了影响最佳相位匹配的因素和在弱泵浦光条件下增大调谐范围的途径。
It is necessary to adjust the direction of incident light for minimum phase mismatching when the direction of phase matching deviated from crystal normal direction.
晶体倍频中当晶体表面法线与相位匹配方向不一致时,需调整入射光方向使相位失配最小。
Phase matching is of particular concern with some high speed digital circuits, because unmatched cables may cause excessive clock skew, resulting in erroneous operation.
由于不匹配的电缆可引起过度的时钟相偏(Clock Skew),导致错误操作,所以相位匹配是有些高速数字电路中特别要注意的事项。
The influence of Mg concentration in doping on phase matching temperature, phase matching Angle, optical homogeneity, lattice parameter and density of the crystal is also stated.
掺镁浓度对晶体相匹配温度、相匹配角、光学均匀性、点阵常数和密度的影响。
On the basis of signal phase matching principle and the method of least squares of parameter estimation, a method for single-frequency signal detection is presented in this paper.
根据信号相位匹配原理及其信号参数的最小二乘估计方法,提出了一种单频信号检测方法。
In order to verify the validity for signal phase matching principle, the experiments of DOA (Direction of Arrival) estimation are carried out at reservoir by using 16-sensor array.
为了验证信号相位匹配原理的正确性,利用自制的16元线列阵,在水库进行了声源定向实验研究。
Furthermore, in the approximations of the exact phase matching, compared with the ideal case, the frequency-doubling efficiency reduced by multi-optical coatings is not more than 6%.
在近似相位匹配下,倍频效率相对于理想情况降低幅度不超过6%。
One of the most effective and feasible ways of broadening the range of the output wavelength is using frequency conversion of non-linear Crystal under the condition of phase matching.
拓宽激光输出波长的范围最常用最有效的方法之一是利用非线性晶体在相位匹配条件下的频率变换技术。
The principles of laser frequency transformation and the theory of phase matching in nonlinear optic crystals are also discussed. Based on this theory, Angle of phase match is calculated.
在总结激光频率变换的原理和非线性光学晶体的相位匹配理论的基础上,可以根据相位匹配理论进行晶体的相位匹配角的计算。
The phase matching conditions for sum frequency generation are analyzed. The optimum phase matching angles and effective nonlinear coefficients for KTP and LBO are derived and calculated.
进行了双束激光和频相位匹配的理论分析,给出了KTP和LBO 两种晶体在和频时的最佳相位匹配角和有效和频系数。
In practical applications, due to impairment of the device and the circuit design structure, it is difficulty to achieve the accurate gain and phase matching required between the two paths.
而在实际应用中,由于器件工艺和电路设计结构的非理想性,两支路间必然会存在不匹配现象。
The small control is adopted also in the phase control and the best phase matching between the control signal and the unstable periodic orbit is reached. Then the best effect of control is got.
外激励相位控制采用微小信号控制并使控制信号与系统的不稳定周期轨道达到最佳相位匹配,获得最佳控制效果。
The phase matching transform is performed on the sample series. of narrow-band radar echo, and the centroid position parameter is estimated by searching for the maximum value of the matching function.
然后对窄带雷达回波采样序列进行相位匹配变换,搜索匹配函数的最大值,从而得到质心位置参数的估计值。
A study on the mode under the condition of phase-matching of stimulated four-photon mixing (SFPM) in optical fiber waveguides has been performed.
本文对相位匹配条件下光纤波导中的受激四光子混频(SFPM)过程的模式问题进行了理论和实验研究。
The harmonic amplitude equation and the generation efficiency of nonlinear optical frequency conversion(NOFC)in quasi-phase-matching (QPM) were discussed.
讨论了准相位匹配(QPM)技术中的非线性光频转换谐波振幅方程和谐波转换效率。
Any theory has its limits of applicability including the phase-matching condition.
任何一种理论都有它的适用范围,相位匹配条件亦不例外。
The results indicate that the adaptive algorithm offers adequate tracking performance for time-varying phase and gain errors, reducing the matching requirements of the analog front-end.
结果表明这种自适应算法对时变幅相误差具有优良的跟踪性能,同时降低了对模拟前端的匹配要求。
Special consideration was paid to the transportation of coherent flux and phase space matching in horizontal and vertical directions.
重点考虑了相干辐射的传输,分析了水平和垂直方向的相空间匹配问题。
The transition from the rectangular waveguide to the cavity coupler in LINACis made by means of a matching iris, which leads to amplitude and phase asym-metries of fields in the cavity coupler.
电子直线加速器的腔式耦合器通过侧面匹配膜片和方波导相连,它引起了腔中场振幅和相位的不对称。
In order to deal with the problem of the estimation of image registration parameter, this thesis ADAPTS the way of combining the methods of phase correlation and template matching.
针对图像配准中的亚像素参数估计问题,提出了一种相位相关和模板匹配相结合的方法。
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