复数矩是以复数为核的矩函数,它有许多不同的类型。
Complex moments, divided into many types, is moment function which takes complex as its core.
通过对幂谱和统计矩函数的分析,得出股票市场时间序列的无标度性。
Power spectrum analysis and statistical moment function on a range of scales revealed scaling qualities of the date from stock market.
本文主要研究了矩函数和神经网络分别在图像识别的特征提取和模式分类方面的应用。
In this paper we look into the application of moment function and neural network in feature extraction and pattern classification of image recognition respectively.
这些工作为格林函数快速计算方法的实现以及积分方程的矩量法高效求解打下了基础。
The derivations lay a good foundation for the efficient evaluation of Green's functions and the fast solving of scattering problems by the method of moments (MoM).
若把二值图或灰度图看作是二维密度分布函数,就可把矩技术应用于图像分析中。
The use of moments for image analysis is straightforward if we consider a binary or gray level image segment as a two-dimensional density distribution function.
将GERT网络技术应用于桥梁施工进度控制,通过分析矩母函数、梅森公式阐述了GERT网络的解析法,提出确定工序参数的方法。
The analytic calculation of GERT network was presented by solving moment function and Mason formula to determine the construction procedure parameters.
激光诱导荧光强度是光碎片分子初始态多极矩、线强度因子和解离—激发几何因子的函数。
The LIF intensity is a function of the initial molecular state multipoles, the line strength factor and the dissociation excitation geometrical factor.
基于极限状态函数矩估计的失效概率计算,提出一种新的可靠性灵敏度分析方法。
Based on the moment estimation of limit state function for calculation of failure probability, a new reliability sensitivity analysis method is presented.
在证明中采用了一种把网微分法与条件矩母函数相结合应用于随机选择系统强极限定理研究的一种途径。
In the proof, the tools of the conditional moment generating function and the differentiation on a net for the study on strong limit theorems in the random selection system are applied.
文章给出了基于高阶叠层型勒让德基函数的矩量法公式,并引入自适应积分方法来加速其求解过程。
The higher-order hierarchical Legendre basis functions based MOM is introduced, and the AIM is employed to accelerate the solving procedure.
另外,蛋白质序列还可用其它特征提取方法提取的特征向量来表示,如氨基酸组成成分、加权自相关函数和矩描述子。
In addition, the protein can be represented as other feature vectors based on amino acid composition (AAC), weighted auto-correlation function and Moment descriptor methods.
运用基于矩量法的特征基函数方法分析了大型阵列结构的电磁辐射与散射特性。
Characteristic basis function method (CBFM) in conjunction with method of moment (mom) is applied to analyze the radiation and scattering properties of large array structures.
从颗粒运动的PDF(概率密度分布函数)输运方程出发建立颗粒相的质量、动量和脉动速度二阶矩方程。
Equations of mass, momentum and second moments for particulate phase are derived from a particle PDF (probability distribution function) equation in dilute turbulent sediment-laden flows.
本文利用第二类尖劈并矢格林函数对任意夹角的V形缝隙天线进行了矩量法计算。
The V-slot antennas with arbitrary included angles are analyzed by moment method and by using dyadic Green's function of wedges of second kind.
文章构造性的证明了改进提升系数能增加小波函数的消失矩,而消失矩的增加意味着能获得更好的能量集中特性。
It proves that the improved lifting coefficient can add to the vanishing moment of the wavelet function in a constructed way, and the adding means to a more centralized energy property.
本文采用修正格林函数积分方程的矩量法数值解技术求解静电场边值问题。
A new approach to numerical solution of the boundary-value problems of static-electric fields, the Modified Green Function kernel integral equation and its moment-method solution, is presented.
最大熵密度函数以Z的期望和高阶中心矩为约束条件加以拟合。
The maximum entropy density function is fitted with the restriction of expectation and high DE - gree central moments of Z.
质量统计是不可靠度的矩估计的严格增加函数。
The quality statistic is a monotonous function of a method of moments estimator of the unreliability.
研究分形插值函数的矩量积分问题。
The moment integral problem of fractal interpolating functions(FIFs) are studied in this paper.
提取直方图特征函数(HCF)域21维统计矩特征组成特征向量,用支持向量机(SVM)训练分类器。
Extract 21-dimensional statistical characteristics of histogram characteristic function (HCF) field, training classifier with the support vector machine (SVM).
波函数二阶矩的数值结果表明,绝大多数的电子态都是局域化的。
The numerical results for second moments of wave functions are shown, most states are localized ones.
应用改进矩量法,只取较少的基函数项的情况下,导出了矩形微带贴片天线输入阻抗的计算公式,并进行了软件实现。
Using improved moment-method with fewer terms of basis functions, formulae for calculating the impedance are derived and software is achieved.
在对分支过程性态的研究中,前人的研究工作都是借助矩母函数这一工具来实现的。
The generating function was adopted to research the behavior of branching processes in the former research.
为了提高辐射问题的计算效率,推导了微带线结构的含有闭式空域格林函数的矩量法数值计算公式。
In order to increase computing speed, MOM formulations including closed-form spatial domain Green's functions are derived for geometry of microstrip.
本文探讨了功能函数不明确结构四阶矩可靠度的分析方法。
In this paper, the four-moment reliability analysis method for perfopmance function implicit structure is discussed.
探讨了在随机向量的一阶矩和二阶矩条件下,寻找补偿函数的期望值的一个上界的问题。
This paper inquires into the problem of finding an upper bound for the expectation of recourse function when only first and second moment constraints are available.
一次二阶矩方法是结构可靠度分析的基本方法.一次二阶矩方法的计算精度依赖于验算点附近功能函数的非线性程度。
The first-order second-moment method is fundamental in structural reliability analysis, its accuracy depends upon the nonlinear extent of performance functions around checking point.
本文基于渐近波形估计(AWE)技术和矩量法(MOM)快速预测无限大导体平面上任意形状凹槽的散射场方向性函数。
The method of moments (MOM) combining with the asymptotic waveform evaluation (AWE) technique is used to predict scattering fields of an arbitrarily shaped groove in a perfectly conducting plane.
相位统计矩方法利用MPSK信号符号初相位偶阶统计矩为M的单调递增函数的特性,并进行M进制识别复合假设检验。
In the SPM method the composite hypothesis test is performed by means of the monotonic characteristic of the even order statistical phase moments of MPSK signals.
相位统计矩方法利用MPSK信号符号初相位偶阶统计矩为M的单调递增函数的特性,并进行M进制识别复合假设检验。
In the SPM method the composite hypothesis test is performed by means of the monotonic characteristic of the even order statistical phase moments of MPSK signals.
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