1) coherent potential
相干位
1.
This paper introduces a new method of coherent potential to calculate the effective permittivity of layered dielectric spheres,which is different from the mixed image,here we set effective permittivity to be the permittivity of background media in advance,then use a simple mathematic transformation which can introduce the coherent potential easily.
该文介绍了计算多层球等效介电常数的相干位法,与传统的混合表象假设波以背景媒质的波数传播不同,该方法预设混合物等效介电常数为新模型下背景媒质的介电常数,并对新模型中多层球的介电常数做相应的修改,通过简单的代数变换,自然地在新模型的背景媒质中引入了相干波,该方法避免了复杂的数学运算,建立的模型更接近真实的情况,在多层球占空比较大的情况下仍然适用,最终得到的结果物理意义明确。
2.
This paper introduces a new method of coherent potential to calculate the effective permittivity of dielectric ellipsoids,which is different from the mixed image,here we set effective permittivity to be the permittivity of background media in advance.
该文介绍了计算椭球散射体等效介电常数的相干位法,与传统的混合表象假设波以背景媒质的波数传播不同,该方法欲设混合物等效介电常数为新模型下背景媒质的介电常数,并对新模型中椭球的介电常数做相应的修改,通过简单的代数变换,自然地在新模型中引入了相干波。
2) phase coherence
相位相干
1.
The results show that the phase coherence among the impurity atoms within magnetic particle plays a key role for the origin of maximum GMR.
用双流模型研究磁性金属一金属型颗粒膜（Ｆｅ－Ａｇ，Ｃｏ－Ａｇ）中巨磁电阻（ＧＭＲ）极大值特性结果表明，磁性颗粒内杂质原子之间的相位相干，对磁电阻极大值的产生有重要影响这种相位相干与外场磁化的综合作用使颗粒膜巨磁电阻的尺寸关系表现出非单调的特征，井用该模型计算和讨论了巨磁电阻的其它性质，结果与实验符合较
2.
In order to keep phase coherence between the transmitter and the receiver,we implemented a method in which the frequencies of the transmitter and the receiver were switched simultaneously during pulse sequence execution,and reset to their original values,respectively,at the end of sequence.
讨论了一种在核磁共振成像数字谱仪中保证射频发射机与接收机之间射频信号相位相干的方法,该方法在成像脉冲序列执行过程中,同步切换发射机与接收机的频率,并在脉冲序列最后,将发射和接收频率恢复到脉冲序列最初的频率值,从而实现发射与接收的信号相干,其优点是无需加入额外的"回绕延时",从而使得脉冲序列的编写得到简化,并且该方法不依赖于磁共振谱仪发射机和接收机硬件部分的具体结构,是适用于数字化谱仪的一种普遍的方法。
3) Interferometric phase
干涉相位
1.
This paper is focused on the analysis of the relation between the landform and its interferometric phase according to the InSAR principle The flat,upgrade and downgrade are analysed in detail These are proved and explained by the real data example
本文从合成孔径雷达干涉测量的原理出发 ,具体分析干涉相位与地形变化的相互关系 ,并着重分析了平地、上下坡等情况 ,而且用实际例子加以论证、说
2.
We propose a method to estimate the InSAR(Interferometric Synthetic Aperture Radar) interferometric phase based on the model of joint single pixel.
提出了一种基于联合单像素模型的InSAR(Interferometric Synthetic Aperture Radar)干涉相位估计方法。
3.
The method joints the range history with the interferometric phase.
针对在多通道合成孔径雷达地面运动目标检测系统中采用常规测速方法估计运动目标径向速度时产生模糊的问题,提出了一种联合斜距历程和干涉相位的不模糊速度估计方法(JRHIP)。
4) phase interference
相位干扰
1.
Analysis and elimination of power frequency phase interference in Frank-Hertz demonstration experiment;
夫兰克-赫兹演示实验中工频的相位干扰分析与消除
6) phase decoherence
相位退相干
1.
The time-evolution of entanglement in the interacting System of the atom and coherence field with phase decoherence;
存在相位退相干时原子与光场相互作用的纠缠演化和保持
2.
The time evolution of the collapses and revivals of the atomic inversion and the photon number distribution in a system where a two-level atom interacts with the field that is prepared in the coherent state and discussed the influence of the phase decoherence on nonclassical effects are studied.
研究了存在相位退相干的两能级原子与相干态光场相互作用系统,通过求解主方程得到了原子反转算符期待值和光子数分布随时间演化的表达式,讨论了相位退相干系数对原子和光场非经典特性的影响。
补充资料：相干散射和非相干散射
再辐射的光量子频率和被吸收的光量子频率准确相等的散射过程称为相干散射。在相干散射的情况下，源函数准确地等于平均辐射强度。再辐射的光量子频率和被吸收的光量子频率不相等的散射过程称为非相干散射。在天体物理中，存在一系列因素使散射过程成为非相干散射。主要的因素是：原子的能级有一定的宽度、原子的热运动和湍动以及压力效应等。对于非相干散射，源函数是相当复杂的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条