相位

The expression of obtained phase spectrogram is discontinuous and difficult to read out exactly.

所得的相位谱图都有相位表示不连续和难于判读的缺点。

In addition, the nonlinear processes such as cross-phase modulation, non-degenerate two-photon absorption, and stimulated Raman scattering must also be considered for double wavelengths propagating in waveguide.

在归纳分析了SOI对光信号处理的研究进展的基础上，进一步完善了超快脉冲在脊形硅波导中演变时所满足的线性和非线性传输方程，在此非线性方程中包括波导线性损耗、群速度色散和三阶色散等线性效应；同时也包含了自相位调制、简并双光子吸收、自由载流子吸收和自由载流子色散等非线性过程；当双光场在波导中传输时，脉冲之间的交叉相位调制、非简并双光子吸收和受激拉曼散射效应等非线性效应也被考虑。

Not considering subsample, these two filter banks retain more image details and better direction selectivity.

这两种全相位方向滤波器组不对图像下采样，保留了图像方向的细节信息，具有更好的方向选择性能且在恢复时，不需要重建滤波，方法简单；在对Contourlet变换的分级研究中，建立了一种全相位分级方法，由于全相位子带分解的优异性能，使得这种分级方法优于拉普拉斯金字塔分级方法。

A circuit for detecting the phase angle of a three-phase alternating current includes a plurality of low-pass filters, a plurality of multipliers, a subtracter, a loop filter, an integrator, and a phase delay compensator installed between the subtracter and the loop filter, for compensating for phase delay of the input signal caused by the low-pass filters.

一种检测三相交流电相位角的电路，包括：若干个低通滤波器；若干个乘法器；一个减法器；一个环路滤波器；一个积分器；和安装在减法器与环路滤波器之间的相位延迟补偿器。

Meanwhile, steep is superlatively detailed in simple music – single voice/instrument, or just a few – but slightly loses out to linear in very dense textures.

同时，"陡峭相位"有最佳细节，在单纯音乐——单一的人声/乐器，或仅仅少量的——但相对"线性相位"在密度质地上有轻微的损失。

Instead of triggering on each pulse, a phase lock technique examines the relative phase between each oscillator and many of its sync pulses and adjusts oscillator frequency so that the average phase discrepancy is small.

锁相技术靠检查各振荡器和许多同步脉冲之间的相位关系来调节振荡频率，使平均相位偏差很小，而不是用每一个脉冲进行触发。

This paper, based on the secong approach, presents a new efficient algorithm to design symmetric bi-orthogonal M-band wavelets with arbitrary regularity by using Grobner basis and syzygy module algorithm in computing algebra, which bi-orthogonalizes the polyphase matrix line by line.

本文基于第二种思路结合计算代数中Groebner基和合冲模的思想和算法提出了一种同时具有任意正则阶和线性相位性质的M带双正交小波的新型高效构造算法，其中采用多相位矩阵逐行双正交化的方法。

The wavelength tenability of QPM-OPOs has been theoretically analyzed based on the Sellmeier equation of periodically poled crystals and the QPM theory.

基于周期极化晶体的Sellmeier方程和准相位匹配理论，对准相位匹配光参变振荡器的调谐特性进行了理论分析。

Similarly, if the strong shear, which could suppress all the scattering in the quiescent two phase region, stopped, the follow-up phase separation also displayed characteristics of anisotropism and relaxation, In this dissertation, the transposed"butterfly'and"streakpattern were observed for the first time within the shear-history-influenced phase separation, which is found closely relevant to the anisotropical relaxation behavior of macromolecules. 5. The phase separation kinetics of PS/PVME under oscillatory shear was further studied on the base of that done under simple shear. It is found that, under specific temperature and strain amplitude, the occurrence of phase separation is strongly contingent on oscillatory frequency and only intermediate frequency could effectively induce phase separation; If all considered oscillatory shear could stimulate phase separation, a fixed frequency can maintain specific most probable phase size and higher frequency yields smaller phase, which makes a higher elasticity but weaker stress relaxation; Furthermore, higher frequency can produces stronger compulsory oscillation on the MPPS but won't change the mean of the MPPS. Under given frequency and strain amplitude, the phase separation kinetics dramatically depends on the phase angle of oscillation and the phase separation corresponding to different phase angle follows different dynamical process.

在简单剪切场下相分离动力学研究的基础上进一步对振动剪切场下PS／PVME的相分离动力力学进行了尝试性的研究，发现：在一定温度和振幅条件下，相分离的发生强烈的依赖于振动频率，只有中等频率的振动剪切才能有效地促进相分离的发生；在都能使相分离发生的前提下，一定频率的剪切能够使体系维持一定的最可几相尺寸，较高频率的剪切导致体系形成的相区尺寸较小，因而体系的弹性效应较强而应力松弛效应较弱；同时，更高频率的剪切对最可几相尺寸的强迫振动效应越强，但不会使最可几相尺寸的平均值发生改变；在一定的振幅和频率条件下，相分离的动力学过程会强烈地依赖于相位角，不同相位角对应的相分离遵循不同的动力学过程但机理一样。

The high precision and fast optimiza -tion formulae for the phase center of Circular apertured horn are Presented, and the synthes is methods for the reflector antenna are discussed.

提出了园口径喇叭相位中心的快速寻求方法，并对双反射面天线的综合方法进行了研究和讨论，首次提出了反射面天线系统中馈源相位中心的广义表达式，进而提出了反射面天线系统的吻合调整与最佳匹配方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。