查询词典 phase shift

Research on development methods and application of CAD system of prac tical sheet metal expansion ;2. A frame expansion method of operator is used to the phase shift operator of split-step Fourier propagator.

针对裂步Fourier传播算子在速度强横向变化介质中的不足，将算子的框架展开方法应用于Fourier传播算子中的相移算子，提出了一种波场传播的局部裂步Fourier传播算子，并把它应用于波动方程叠前深度偏移成像。

So, with the function, the phase shift method can not only reduce the effect of fringe error and non sinusoidal irradiance function, but also impr.

考虑到光栅投影测量中可能出现的标定误差、投影光非正弦模式以及其他干扰因素，在该函数中加入对这些干扰的纠正值，从而减少由这些干扰产生的不利影响，进一步提高投影光栅和对象测量的精度。

The low phase shift error is critical for measurement of non sinusoidal wave shapes, as found in power quality or sampling digital wattmeter measurement applications.

低相移误差是至关重要的衡量非正弦波形状，在电能质量或取样数字瓦特计测量应用。

Some classical applications and research progress are introduced, such as, selective amplification, frequency multiplication, up-conversion and signal generation in the terms of the gain spectrum as well as the carrier suppression and phase shift from the loss spectral point of view.

从受激布里渊散射增益谱的角度对微波光子信号的选择放大、倍频、上变频和信号产生以及从损耗谱的角度对信号载波抑制和信号相移等典型应用和研究进展进行了介绍。

Based on the research on the scattering of the Gaussian beam from single sphere, the intensity distributions of LGB beam in different propagation distance is analyzed. Without considering the relationship of scattering and phase shift, the beam coefficients is gained by the solution of scattering cross section, and the LGB is expanded in terms of the vector spherical harmonics as fundamental Gaussian beam. The scattering of the beam with orbital angular momentum from single sphere located on the propagation axis is studied.

在单体球粒子对高斯光束散射研究的基础上，分析了在自由空间不同传输距离LGB光束的光强分布情况，在不考虑散射和波束相移关系的情况下，将LGB作为入射高斯光束，通过对波束入射时的散射衰减截面求解得到波束因子，利用矢量球谐函数对入射高斯波束进行展开，从而研究了单球粒子在在轴条件下对具轨道角动量高斯波束入射的散射问题。

Moreover, a method for extracting of a single subshell backscattering amplitude and phase shift from a complex standard sample was proposed.

弹性核心效应的研究表明连续介质的弹性理论应用到固溶体中有其局限性。

But in the detection system there are a large number of stray capacitance,which makes phase shift of the detect signals.

而在检测系统中存在大量杂散电容，使检测信号产生相移。

A complete transformer model should includes: turn ratio, connection, phase shift, isolation, nonlinearity of exciting current, frequency dependence of shortcircuit impedance, stray capacitance in high frequency and so on.

一个较为完整的变压器模型应包括：变比、联结组、相移、节点的隔离、励磁电流的非线性、短路阻抗的频率相关特性、高频下的杂散电容等特性。

A complete transformer model should include turn ratio, connection, phase shift, isolation, nonlinearity of exciting current, frequency dependence of short-circuit impedance, stray capacitance in high frequency and so on.

一个较为完整的变压器模型应包括：变比、联结组、相移、节点的隔离、励磁电流的非线性、短路阻抗的频率相关特性、高频下的杂散电容等特性。

Beginning with wave equation, the paper has deduced the propagation of gauss pulses in single mode fiber and fiber grating transmission compensation. The characteristics of cascaded phase-shift gratings are discussed by numerical simulations of coupled-mode theory and T-matrix method. The experimental works and measurement results are shown in this paper. On the other hand, we have introduced the basic theory of EDFA and figured out the characteristics for EDFA at different conditions by numerical simulation. Some experimental results for EDFA are also presented here. In this article, you can find the influence on Optical Fiber Amplifier by Gain Tilt, especially, the negative effect on CSO in CATV transmission system.

论文首先从波动方程入手，对高斯脉冲在单模光纤中的传播演化及光纤光栅透射补偿进行了详细的研究；较系统地介绍了光纤光栅的耦合模理论，并将传输矩阵计算法用于计算级连相移光纤光栅的光学特性；重点介绍了作者在光纤光栅刻制及特性测量方面所做的一些实验研究工作；较系统介绍了EDFA的基本理论，计算出各种条件下EDFA的光学特性，并进行了一些实验研究；综合分析光纤放大器对光纤传输系统的影响，特别分析了光纤放大器增益不平坦对光纤CATV系统中CSO恶化的原因及其解决方法，并研究了光纤布拉格光栅在稳定980nm泵浦源输出功率和输出波长方面的应用；结合一个基于光纤光栅和光纤放大器的光纤用户接入网方案，对光纤用户接入网的若干问题进行了理论与初步的实验研究。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。