极化

The polarization angular correlation function is calculated by using azimuthal angular averaging.

在L、C及X波段下，首次用极化角相关函数对分形树森林环境中隐蔽目标进行了检测，说明极化角相关函数方法能够抑制杂波，突出隐蔽目标的散射特性，用于杂波环境中隐藏目标的检测。

Nowadays, the polarimetric radar is very important in the air defense and antimissile fields.

雷达极化技术的进步和极化测量雷达的出现极大地提高了雷达系统的探测能力和目标识别能力，在防空、反导等领域日益发挥着越来越重要的作用。

Firstly the Pauli decomposition is used to separate both the symmetric part and antisymmetric part of a multi-look image, then the Krogager decomposition is applied to extract the polarimetric feature of the symmetric image, at last an AdaBoost classifier is adopted to improve the classification performance.

首先利用Pauli分解分离出多视复图像数据的对称部分和非对称部分，然后利用Krogager分解提取出对称部分的极化特征，最后利用AdaBoost算法对所提取的极化特征进行分类。

The geometries,electronic structures,polarizabilities and hyperpolarizabilities,as well as the UV-Vis spectra of the two organic dye sensitizers containing bis-dimethylfluorenyl amino benzofuran were studied via density functional theory and time-dependent DFT.

运用密度泛函理论和含时密度泛函理论研究了两种含二-二甲基芴氨基苯并呋喃基团的有机染料敏化剂的几何结构、电子结构、极化率和超极化率以及紫外可见谱。

The changes of free energy and enthalpy were calculated in terms of depolarization values on Al cathode. Thermodynamic meaning of depolarization was discussed in details and the empirical relation between binary alloy type and depolarization type was proposed.

根据锂离子在铝阴极上产生的去极化值求出铝和锂发生合金化反应的热力学意义，提出二元合金类型与极化类型之间的经验关系。

These methods are validated using simulation data, data measured in microwave anechoic chamber and practice measured PolSAR complex imaging data. Unlike the traditional method, these methods can estimate coherent scattering matrices of scattering centers accurately by overleaping the step of scattering center association.

利用仿真数据、暗室测量数据和实测PolSAR复图像数据，验证了这两种方法的有效性，其突出优点是不需要进行散射中心位置及极化的关联，并可以实现相干极化散射矩阵元素的同时估计。

Thus, this paper presents a circular polarization ultra-short pulse laser field of first-order correction, and research in the circle of electronic polarization ultra-short pulse laser correction of dynamic process.

由此，本文给出圆极化超短脉冲激光场的一阶修正解，并研究电子在圆极化超短脉冲激光修正场中的动力学过程。

There are three parts in our design: first, the dual-band branch line coupler provides two equal-power signals with 90° or -90° phase difference in each operating band. Second, the wideband switching circuit controls the two output powers of branch line coupler to excite the antenna structure for producing linear polarization wave or circular polarization wave. Third, the L-shaped fed conventional planar patch antenna is provided to overcome the coupling effect.

整体架构包含三个部分：L形电容耦合馈入式平面天线是为了克服平面式微带天线窄频的缺点；双频枝干耦合器提供天线在操作的两个频率点上各输出两组相差正九十度与负九十度的讯号，最后宽频的切换电路是将枝干耦合器的两组讯号作分配用以激发不同方向的天线以产生线性极化模态或同时激发两个垂直的天线以产生圆形极化模态。

A wireless system for use in a low power data communications in a sub-millimeter wave zone includes at least one wireless communications device including a directional antenna whose cross-polarization discrimination is not less than 24 dB, wherein the wireless system uses a plurality of planes of polarization selectively.

一种用于亚毫米波带中的低功率数据通信的无线系统包括至少一个无线通信装置，该无线通信装置包括交叉极化鉴别率不小于24dB的定向天线，其中，该无线系统有选择性地使用多个极化面。

The complex domain structure is related to the orientation of the crystal grains in the film.

薄膜的自发极化电畴主要由极化矢量垂直膜平面方向和偏离膜平面垂直方向的c畴所构成。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。